{"id":87710,"date":"2026-01-07T13:37:51","date_gmt":"2026-01-07T13:37:51","guid":{"rendered":"https:\/\/mailrelay.com\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/"},"modified":"2026-01-07T13:37:56","modified_gmt":"2026-01-07T13:37:56","slug":"how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay","status":"publish","type":"post","link":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/","title":{"rendered":"How to achieve the best email marketing deliverability with Mailrelay"},"content":{"rendered":"\n<p><strong>In email marketing, the main thing is for emails to reach the inbox.<\/strong><\/p>\n\n<p>Deliverability measures how many of your emails reach your subscribers&#8217; inboxes. <\/p>\n\n<p>Worldwide, thousands of companies rely on email to talk to their customers. <\/p>\n\n<p><strong>However, approximately 20% of sent emails may never reach the inbox due to <a href=\"https:\/\/mailrelay.com\/en\/glossary\/antispam-filters\/\" target=\"_blank\" rel=\"noreferrer noopener\">spam filters <\/a> and sender reputation issues.<\/strong> <\/p>\n\n<p><strong>Increasing that percentage will increase profits.<\/strong><\/p>\n\n<p>In fact, statistics show that email marketing continues to achieve fantastic results globally.<\/p>\n\n<p><strong>For instance, average open rates in countries like Spain exceeded 30% last year, well above the global average near 20%. <\/strong><\/p>\n\n<p>This indicates that the public responds very well to email marketing. <\/p>\n\n<p>So? <\/p>\n\n<p>Optimizing deliverability usually offers <strong>higher open rates<\/strong>, more clicks, and ultimately, more conversions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to avoid landing in spam with bulk sending<\/h2>\n\n<p>Sending <strong>bulk emails <\/strong> doesn&#8217;t have to mean they end up in spam.<\/p>\n\n<p>You just have to follow some best practices, and volume won&#8217;t be a problem.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Get your subscribers&#8217; consent: <\/h3>\n\n<p>It&#8217;s easy to fall into temptation, when looking at email marketing results, to buy an email list.<\/p>\n\n<p>Don&#8217;t do that.<\/p>\n\n<p>Don&#8217;t send emails to people who haven&#8217;t requested them. <\/p>\n\n<p>The best approach is to use clear subscription forms and double opt-in (email confirmation) to ensure each recipient really wants your content. <\/p>\n\n<p>If someone hasn&#8217;t told you &#8220;yes, I want to receive your emails,&#8221; don&#8217;t include them in your list; it&#8217;s that simple. <\/p>\n\n<p><strong>Without permission, any bulk sending, no matter how legal it seems, will be considered spam.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Don&#8217;t buy email databases:<\/h3>\n\n<p>This is insisting a bit on the previous point.<\/p>\n\n<p>Because it&#8217;s important.<\/p>\n\n<p>Purchased email lists will likely have uninterested contacts, obsolete addresses (bounces), and even <a href=\"https:\/\/mailrelay.com\/en\/glossary\/spamtraps\/\" target=\"_blank\" rel=\"noreferrer noopener\">spam traps <\/a> (trap accounts used to <strong>detect spammers<\/strong>). <\/p>\n\n<p>Cleaning these lists is an almost impossible task.<\/p>\n\n<p>So sending to these types of lists will skyrocket your bounces and complaints, damaging your domain reputation.<\/p>\n\n<p><strong>Many people have the mistaken concept that a first email will clean these lists.<\/strong><\/p>\n\n<p>The reality is that this first email can end up including the sender domain on <a href=\"https:\/\/mailrelay.com\/en\/glossary\/blacklist\/\" target=\"_blank\" rel=\"noreferrer noopener\">blacklists<\/a>.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Always include an unsubscribe link and legal details: <\/h3>\n\n<p>Every <a href=\"https:\/\/mailrelay.com\/en\/glossary\/newsletter\/\" target=\"_blank\" rel=\"noreferrer noopener\">newsletter <\/a> or promotional email you send must include an unsubscribe link.<\/p>\n\n<p><strong>Not including it is the easiest way for it to be considered spam.<\/strong><\/p>\n\n<p>This is also easy to do, as Mailrelay handles it automatically for you.<\/p>\n\n<p>On the other hand, adding a legal text is highly recommended, something similar to what you have on your website, with your contact details.<\/p>\n\n<p><\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Use a reliable and recognizable sender: <\/h3>\n\n<p>Always send from a professional email address on your own domain (for example, your_name@your_company.com). <\/p>\n\n<p><strong>Avoid generic or suspicious senders like free addresses (Gmail, Yahoo) for bulk campaigns. <\/strong><\/p>\n\n<p>As they are usually blocked.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Take care of content quality: <\/h3>\n\n<p><strong>Anti-spam filters analyze the content of your emails. <\/strong><\/p>\n\n<p>The texts, images, links, attachments, everything.<\/p>\n\n<p>There are some tips that might seem a bit old-fashioned:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Avoid words or phrases that can be considered &#8220;spam&#8221;<\/li>\n\n\n\n<li>Exaggerated offers (&#8220;Make money fast!&#8221;, &#8220;100% free now&#8221;)<\/li>\n\n\n\n<li>Excessive use of $ or \u20ac symbols<\/li>\n\n\n\n<li>Abusive use of capital letters or exclamation marks<\/li>\n\n\n\n<li>Excessive caps, especially in the subject line<\/li>\n<\/ul>\n\n<p><strong>Does this mean that using these elements will put the email in spam? And that if they aren&#8217;t used, it will reach the inbox?<\/strong><\/p>\n\n<p>It&#8217;s not that simple.<\/p>\n\n<p>But, you can ask yourself, if I received this email, would it look like <strong>spam <\/strong> to me?<\/p>\n\n<p>The answer to this question will help you.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Simple design: <\/h3>\n\n<p>The most effective approach is usually not to overcomplicate things.<\/p>\n\n<p>A simple newsletter, which conveys the message directly, is usually the most effective.<\/p>\n\n<p>You have to consider that most recipients won&#8217;t have much time, so something brief is usually best.<\/p>\n\n<p>A complex, convoluted design that doesn&#8217;t make the goal clear usually performs worse.<\/p>\n\n<p>In any case, it&#8217;s recommended to run tests to adapt your strategy to your audience.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Send consistently, not all at once: <\/h3>\n\n<p>This is another point you have to be careful with.<\/p>\n\n<p>If you have never sent a bulk email campaign, it&#8217;s not best to suddenly send to your entire list.<\/p>\n\n<p><strong>Why?<\/strong><\/p>\n\n<p>The reasons are diverse:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Email clients don&#8217;t have references of campaigns from your domain, so they may be suspicious.<\/li>\n\n\n\n<li>If the list is getting outdated, it&#8217;s very possible that many emails will bounce, generate errors, etc.<\/li>\n\n\n\n<li>It&#8217;s also possible that contacts, if some time has passed without receiving emails from you, won&#8217;t remember subscribing and will flag you as spam<\/li>\n<\/ul>\n\n<p>In short, a common mistake is accumulating a huge list and suddenly sending 100,000 emails at once after months of inactivity. <\/p>\n\n<p>These sudden spikes in volume can trigger alerts at providers (especially if you haven&#8217;t sent anything before). <\/p>\n\n<p><strong>It&#8217;s better to increase the limit little by little, and from there maintain a constant sending volume.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Keep your contact list clean: <\/h3>\n\n<p>Keeping the contact list clean helps a lot to maintain good deliverability.<\/p>\n\n<p>If your contact list returns many bounces.<\/p>\n\n<p>Or you keep trying to send to those bounces.<\/p>\n\n<p>That sends a bad signal to the different <a href=\"https:\/\/mailrelay.com\/en\/glossary\/email-service-provider-esp\/\" target=\"_blank\" rel=\"noreferrer noopener\">ESPs<\/a>.<\/p>\n\n<p>Just like if you receive many spam complaints, or continue sending to emails that wanted to unsubscribe.<\/p>\n\n<p><strong>Mailrelay helps you keep your contact list clean by detecting bounces, managing unsubscribes, and handling spam complaints.<\/strong><\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"830\" height=\"340\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/writing-and-sales-persuasion.jpg\" alt=\"Mailrelay interface: simple to use and powerful in features\" class=\"wp-image-87000\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/writing-and-sales-persuasion.jpg 830w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/writing-and-sales-persuasion-300x123.jpg 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/writing-and-sales-persuasion-768x315.jpg 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/writing-and-sales-persuasion-110x45.jpg 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/writing-and-sales-persuasion-60x25.jpg 60w\" sizes=\"auto, (max-width: 830px) 100vw, 830px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">Mailrelay interface: simple to use and powerful in features<\/h2>\n\n<p>An easy-to-use email marketing tool saves you time and allows you to focus on the more creative parts.<\/p>\n\n<p>The Mailrelay dashboard is therefore very intuitive:<\/p>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"533\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel-1024x533.png\" alt=\"Mailrelay, simple and powerful control panel\" class=\"wp-image-87074\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel-1024x533.png 1024w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel-300x156.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel-768x400.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel-1536x800.png 1536w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel-110x57.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel-60x31.png 60w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/mailrelay-email-marketing-sencillo-panel.png 1608w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p><strong>Why can this interface help you work better?<\/strong><\/p>\n\n<p>Mainly because the menus have been organized logically, also adding some shortcuts for the most important actions.<\/p>\n\n<p>This way you don&#8217;t lose time looking for the menu you need.<\/p>\n\n<p>A general summary of statistics is also shown, regarding the latest email campaigns you have sent.<\/p>\n\n<p>From this main screen, by using shortcuts, you can:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Import contacts (for example from a CSV)<\/li>\n\n\n\n<li>Create a newsletter<\/li>\n\n\n\n<li>Create an automation<\/li>\n\n\n\n<li>Create a landing page<\/li>\n<\/ul>\n\n<p>The rest of the actions can be carried out directly from the side menu, organized by themes\/categories.<\/p>\n\n<p>For instance<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>From the subscribers menu: <\/strong> you will be able to create groups, dynamic segments, custom fields, subscription forms, and import contacts<\/li>\n\n\n\n<li><strong>In the newsletters menu: <\/strong> you can create your newsletter designs (and send them), RSS newsletters, senders, and A\/B tests<\/li>\n\n\n\n<li><strong>Reports: <\/strong> reports of sent newsletters, automations, SMTP emails, and account plan statistics<\/li>\n\n\n\n<li><strong>Automations: <\/strong> where you can create various types of automations (registration, drip campaigns, etc.)<\/li>\n\n\n\n<li><strong>Landing pages: <\/strong> from this section you can create landing pages, where you can insert forms and share them in your acquisition campaigns.<\/li>\n\n\n\n<li><strong>Media manager<\/strong>: allows you to upload images to use in the design of your <a href=\"https:\/\/mailrelay.com\/en\/glossary\/newsletter\/\" target=\"_blank\" rel=\"noreferrer noopener\">newsletters<\/a><\/li>\n\n\n\n<li><strong>SMS: <\/strong> to create and manage SMS campaigns<\/li>\n\n\n\n<li><strong>WhatsApp: <\/strong> here you can create and manage WhatsApp message campaigns<\/li>\n\n\n\n<li><strong>Settings: <\/strong> in this important menu you can find, among other things, the general account configuration (with the time zone), SMTP and API settings, event management, and system email drafting (emails sent when a contact registers, etc.)<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">\u00b7 And what about the newsletter editor?<\/h3>\n\n<p>We will see this in more detail in the next sections.<\/p>\n\n<p>But I think it&#8217;s interesting to highlight that the Mailrelay editor includes AI capabilities so you not only save a lot of time in drafting your emails, but you can avoid deliverability issues.<\/p>\n\n<p><strong>Why is this so?<\/strong><\/p>\n\n<p>Because the newsletter texts, as we have seen before, affect deliverability, and that&#8217;s why well-written texts will be more effective.<\/p>\n\n<p><strong>If you don&#8217;t have time or experience, we recommend trying the Mailrelay AI newsletter assistant.<\/strong><\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"830\" height=\"340\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/sales-grow.jpg\" alt=\"Email deliverability status: figures and reality\" class=\"wp-image-86161\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/sales-grow.jpg 830w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/sales-grow-300x123.jpg 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/sales-grow-768x315.jpg 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/sales-grow-110x45.jpg 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/sales-grow-60x25.jpg 60w\" sizes=\"auto, (max-width: 830px) 100vw, 830px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">Email deliverability status: figures and reality<\/h2>\n\n<p>Deliverability is not a static measure that remains over time; on the contrary, it is adaptable and reflects the measures that ESPs (like Gmail, Outlook, Yahoo!) take against spam sending.<\/p>\n\n<p><strong>If we speak generally, at a global level, we find that average deliverability is around 80%.<\/strong><\/p>\n\n<p><strong>This means that out of every 100 emails, 20 could end up in spam, bounce, etc.<\/strong><\/p>\n\n<p>But this is at a general level.<\/p>\n\n<p>Averages are like that, they don&#8217;t have to reflect the exact reality of each particular case, especially if you do things right.<\/p>\n\n<h3 class=\"wp-block-heading\">How is deliverability currently performing? <\/h3>\n\n<p>The truth is that the performance of email marketing campaigns has even improved in recent years.<\/p>\n\n<p><strong>The average open rate in top-performing regions for bulk email campaigns exceeded 30% during 2024, placing it clearly above the global average (~20-21%). <\/strong><\/p>\n\n<p>If we compare this data with other online marketing channels, such as SEM, SEO, social media, etc. We can observe that email marketing is much more effective.<\/p>\n\n<p><strong>This high percentage of opens indicates that many emails reach the inbox.<\/strong><\/p>\n\n<p>What can we consider a good deliverability rate?<\/p>\n\n<p>It is usually considered that anything above 90% is already a good deliverability rate.<\/p>\n\n<p>If it is lower, the reasons should be analyzed (email list, message, settings, etc.).<\/p>\n\n<p>Of course, the better this figure is, the better the campaign results will be.<\/p>\n\n<h3 class=\"wp-block-heading\">Gmail as the preferred email provider<\/h3>\n\n<p>This is another important factor to consider.<\/p>\n\n<p>Email providers.<\/p>\n\n<p>Gmail dominates a large part of the global market, followed by Outlook\/Hotmail and corporate services.<\/p>\n\n<p>Well.<\/p>\n\n<p>These services are tightening their authentication and reputation requirements.<\/p>\n\n<p>We already saw this in another article on <a href=\"https:\/\/mailrelay.com\/en\/blog\/2025\/05\/03\/how-to-meet-outlook-gmail-and-yahoo-requirements-to-keep-your-emails-out-of-spam\/\" target=\"_blank\" rel=\"noreferrer noopener\">our blog<\/a>.<\/p>\n\n<p>But we can summarize some of these policies to refresh them here:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Google and Yahoo require configuring DMARC for sending to more than 5,000 contacts\/day<\/li>\n\n\n\n<li>That you include a working unsubscribe link and maintain a spam complaint rate below 0.3% <\/li>\n<\/ul>\n\n<p><strong>In 2024 alone, billions of marketing emails were sent globally, showing a significant increase compared to the previous year. <\/strong><\/p>\n\n<p>And as other online marketing tools continue to lose their effectiveness, this volume will keep growing.<\/p>\n\n<p><strong>Because companies need to run effective marketing campaigns that yield results.<\/strong><\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"830\" height=\"340\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/analytics.jpg\" alt=\"SPF, DKIM, and DMARC: why you need to configure them (and how Mailrelay helps you)\" class=\"wp-image-86166\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/analytics.jpg 830w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/analytics-300x123.jpg 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/analytics-768x315.jpg 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/analytics-110x45.jpg 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/09\/analytics-60x25.jpg 60w\" sizes=\"auto, (max-width: 830px) 100vw, 830px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">SPF, DKIM, and DMARC: why you need to configure them (and how Mailrelay helps you)<\/h2>\n\n<p>If you want your emails to reach the inbox of Gmail, Outlook, and others, there is an essential aspect that can&#8217;t be ignored.<\/p>\n\n<p>SPF, DKIM, and DMARC settings.<\/p>\n\n<p><strong>These three terms refer to email authentication protocols that serve to prove to destination servers that your messages are legitimate and actually come from your domain. <\/strong><\/p>\n\n<p>That&#8217;s why they are so important.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 SPF (Sender Policy Framework): <\/h3>\n\n<p>It is a DNS record that tells receiving email servers which servers or IPs are authorized to send email on behalf of your domain. <\/p>\n\n<p>For example, if your domain is mycompany.com and you send emails using Mailrelay, in your SPF record you will indicate that Mailrelay servers can send emails on behalf of mycompany.com. <\/p>\n\n<p>When Gmail receives a message from you, it will check that SPF record; if it finds the sender&#8217;s IP there, it will trust the email more. <\/p>\n\n<p>On the other hand, if someone tries to impersonate you by sending from another unauthorized server, the <strong>SPF check will fail and the message will possibly be rejected or marked as spam<\/strong>.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 DKIM (DomainKeys Identified Mail): <\/h3>\n\n<p>It&#8217;s like a digital signature. <\/p>\n\n<p>When activating DKIM, your provider (<strong>Mailrelay<\/strong>, in this case) will include an encrypted signature in the header of every email you send. <\/p>\n\n<p>Receiving servers can verify that signature with the public key you publish in your DNS. <\/p>\n\n<p>If the signature matches, it means that the email content was not altered and that it was really sent by a server authorized by you. <\/p>\n\n<p>In short, DKIM guarantees the integrity and authenticity of the message.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 DMARC (Domain-based Message Authentication, Reporting &amp; Conformance): <\/h3>\n\n<p>This is the third pillar, the most recent one. <\/p>\n\n<p>DMARC relies on SPF and DKIM: it allows specifying a policy on what to do if an email fails SPF\/DKIM. <\/p>\n\n<p>With DMARC, you as the sending domain tell receivers &#8220;reject emails that claim to be mycompany.com if they don&#8217;t pass SPF\/DKIM&#8221; or perhaps &#8220;send them to spam\/quarantine&#8221;. <\/p>\n\n<p><strong>Furthermore, DMARC requires that the From: address visible to the user matches the authenticated domain, avoiding spoofing tricks.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Why are these settings indispensable for good deliverability?<\/h3>\n\n<p>Because without these settings, different email providers will most likely directly reject received emails, or leave them in the spam folder.<\/p>\n\n<p>It doesn&#8217;t matter if you send one email or thousands, these settings are necessary.<\/p>\n\n<p><strong>Without them, it&#8217;s not possible to know if your emails are really sent by you, or by anyone pretending to be you.<\/strong><\/p>\n\n<p>Therefore, they are settings that directly affect deliverability, since without them it is much more possible for emails to be marked as spam.<\/p>\n\n<p>Mailrelay not only allows you to change these settings, but also helps you check that they are always correct.<\/p>\n\n<p><strong>You just have to go to the menu Settings &#8211; Email authentication:<\/strong><\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"736\" height=\"517\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/configuraciones-para-email-marketing.png\" alt=\"email marketing settings\" class=\"wp-image-87094\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/configuraciones-para-email-marketing.png 736w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/configuraciones-para-email-marketing-300x211.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/configuraciones-para-email-marketing-110x77.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/configuraciones-para-email-marketing-60x42.png 60w\" sizes=\"auto, (max-width: 736px) 100vw, 736px\" \/><\/figure>\n\n<p> If any configuration were incorrect, it would indicate the changes that must be made.<\/p>\n\n<p>And you would also find a link, which you can send to your domain provider so they can help you add these settings.<\/p>\n\n<p>Of course, our support team will also help you with these settings.<\/p>\n\n<p><strong>It is recommended not to send bulk emails without these settings; review them first.<\/strong><\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"830\" height=\"340\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2024\/11\/online-marketing-engagement.jpg\" alt=\"Mailrelay editor, designed for the deliverability of your email campaigns\" class=\"wp-image-82830\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2024\/11\/online-marketing-engagement.jpg 830w, https:\/\/mailrelay.com\/wp-content\/uploads\/2024\/11\/online-marketing-engagement-300x123.jpg 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2024\/11\/online-marketing-engagement-768x315.jpg 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2024\/11\/online-marketing-engagement-110x45.jpg 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2024\/11\/online-marketing-engagement-60x25.jpg 60w\" sizes=\"auto, (max-width: 830px) 100vw, 830px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">Mailrelay editor, designed for the deliverability of your email campaigns<\/h2>\n\n<p>The content of your emails affects deliverability, as we have been discussing.<\/p>\n\n<p><strong>What can happen if the content of your emails resembles spam emails?<\/strong><\/p>\n\n<p>Well, basically this:<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"121\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/este-email-parece-spam.png\" alt=\"this email looks like spam\" class=\"wp-image-87099\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/este-email-parece-spam.png 886w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/este-email-parece-spam-300x41.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/este-email-parece-spam-768x105.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/este-email-parece-spam-110x15.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/este-email-parece-spam-60x8.png 60w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n<p>If the content of your emails looks like spam, it is quite likely that Gmail and others will categorize it as spam.<\/p>\n\n<p><strong>Simply because it looks like it.<\/strong><\/p>\n\n<p>What things can make your email look like spam?<\/p>\n\n<ul class=\"wp-block-list\">\n<li>The email texts (words, errors, general theme&#8230;)<\/li>\n\n\n\n<li>Errors in the HTML code<\/li>\n\n\n\n<li>Linked domains and URLs (if they are suspicious or on blacklists)<\/li>\n\n\n\n<li>Link shorteners (in some cases)<\/li>\n\n\n\n<li>Excessive use of images or lack of text (for example, if the email is simply an image)<\/li>\n\n\n\n<li>Recently created domain sending a large volume of emails<\/li>\n<\/ul>\n\n<p><strong>Is it understandable that you want to send an email that is simply a single image?<\/strong><\/p>\n\n<p>Yes, of course, the problem is that, historically, spammers have done precisely that.<\/p>\n\n<p><strong>To such an extent that email providers are suspicious of these practices.<\/strong><\/p>\n\n<p>Luckily, the Mailrelay editor helps you avoid these problems.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 How can the Mailrelay editor help you?<\/h3>\n\n<p>We are going to see several ways; for starters, it can suggest subject lines using AI:<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"909\" height=\"355\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asunto-utilizando-ia.png\" alt=\"subject line suggestion using ai\" class=\"wp-image-87105\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asunto-utilizando-ia.png 909w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asunto-utilizando-ia-300x117.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asunto-utilizando-ia-768x300.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asunto-utilizando-ia-110x43.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asunto-utilizando-ia-60x23.png 60w\" sizes=\"auto, (max-width: 909px) 100vw, 909px\" \/><\/figure>\n\n<p>You just have to give it some basic indications, such as the tone, subject type, and brief description.<\/p>\n\n<p>With this data, it will suggest some options:<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"895\" height=\"664\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asuntos-utilizando-ia.png\" alt=\"subject line suggestion using ai\" class=\"wp-image-87109\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asuntos-utilizando-ia.png 895w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asuntos-utilizando-ia-300x223.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asuntos-utilizando-ia-768x570.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asuntos-utilizando-ia-110x82.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/sugerencia-de-asuntos-utilizando-ia-60x45.png 60w\" sizes=\"auto, (max-width: 895px) 100vw, 895px\" \/><\/figure>\n\n<p>They may not be the best subject lines in the world, but as a starting point, they aren&#8217;t bad.<\/p>\n\n<p><strong>If you don&#8217;t have many ideas, use this tool to get suggestions.<\/strong><\/p>\n\n<p>The subject lines of your emails is very important.<\/p>\n\n<p><strong>For the content, you can also use AI options:<\/strong><\/p>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"689\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-1024x689.png\" alt=\"email design via AI\" class=\"wp-image-87115\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-1024x689.png 1024w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-300x202.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-768x517.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-110x74.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-60x40.png 60w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA.png 1222w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p>If you select this option, it will only be necessary to enter some basic information:<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"902\" height=\"594\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-datos-basicos.png\" alt=\"email design via AI basic data\" class=\"wp-image-87119\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-datos-basicos.png 902w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-datos-basicos-300x198.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-datos-basicos-768x506.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-datos-basicos-110x72.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/diseno-de-emails-mediante-IA-datos-basicos-60x40.png 60w\" sizes=\"auto, (max-width: 902px) 100vw, 902px\" \/><\/figure>\n\n<p>And the generated example would be something like this:<\/p>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"614\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/newsletter-de-ejemplo-creada-con-ia-1024x614.png\" alt=\"example newsletter created with ai\" class=\"wp-image-87124\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/newsletter-de-ejemplo-creada-con-ia-1024x614.png 1024w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/newsletter-de-ejemplo-creada-con-ia-300x180.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/newsletter-de-ejemplo-creada-con-ia-768x461.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/newsletter-de-ejemplo-creada-con-ia-110x66.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/newsletter-de-ejemplo-creada-con-ia-60x36.png 60w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/newsletter-de-ejemplo-creada-con-ia.png 1105w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p>It&#8217;s something very simple, yes, but you already have a base text to work with.<\/p>\n\n<p>The important thing is that if you decide to include several images, this base text will help ensure your email at least has some text, which is essential.<\/p>\n\n<p>From this base, you can start adding the elements you need:<\/p>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"598\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/bloques-de-elementos-de-una-newsletter-1024x598.png\" alt=\"newsletter element blocks\" class=\"wp-image-87129\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/bloques-de-elementos-de-una-newsletter-1024x598.png 1024w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/bloques-de-elementos-de-una-newsletter-300x175.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/bloques-de-elementos-de-una-newsletter-768x449.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/bloques-de-elementos-de-una-newsletter-110x64.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/bloques-de-elementos-de-una-newsletter-60x35.png 60w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/bloques-de-elementos-de-una-newsletter.png 1392w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p>You can add all kinds of blocks you need:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Text<\/li>\n\n\n\n<li>Image<\/li>\n\n\n\n<li>Button<\/li>\n\n\n\n<li>Dividers<\/li>\n\n\n\n<li>Spacers<\/li>\n\n\n\n<li>Navigation bars<\/li>\n\n\n\n<li>Social block<\/li>\n\n\n\n<li>Hero<\/li>\n\n\n\n<li>Video<\/li>\n\n\n\n<li>Product list (Woocommerce)<\/li>\n\n\n\n<li>Unsubscribe block<\/li>\n\n\n\n<li>Columns<\/li>\n<\/ul>\n\n<p>To add them, nothing easier than dragging them where you want to put them.<\/p>\n\n<p>This editor generates correct HTML code so you don&#8217;t have problems with different email providers.<\/p>\n\n<p><strong>Since you don&#8217;t need to know or modify HTML, it&#8217;s not possible for you to make a mistake on this point.<\/strong><\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 Spam rating and report<\/h3>\n\n<p>Before sending your newsletter, it is useful to check for possible errors that make the email be considered spam.<\/p>\n\n<p>You can find this report while editing the newsletter:<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"588\" height=\"429\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spam-en-el-editor-de-newsletters.png\" alt=\"spam report in the newsletter editor\" class=\"wp-image-87138\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spam-en-el-editor-de-newsletters.png 588w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spam-en-el-editor-de-newsletters-300x219.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spam-en-el-editor-de-newsletters-110x80.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spam-en-el-editor-de-newsletters-60x44.png 60w\" sizes=\"auto, (max-width: 588px) 100vw, 588px\" \/><\/figure>\n\n<p>This link will take you to a report on the newsletter content:<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"890\" height=\"311\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spamassassin.png\" alt=\"spamassassin report\" class=\"wp-image-87142\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spamassassin.png 890w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spamassassin-300x105.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spamassassin-768x268.png 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spamassassin-110x38.png 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/informe-de-spamassassin-60x21.png 60w\" sizes=\"auto, (max-width: 890px) 100vw, 890px\" \/><\/figure>\n\n<p>If you find any error message here, it would be advisable to fix it before sending.<\/p>\n\n<p>Of course, if you don&#8217;t know how to do it or have any questions, you can contact our support team so we can help you.<\/p>\n\n<p>This way you ensure that the newsletter content won&#8217;t harm deliverability.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00b7 What is something you must avoid as much as possible when preparing your newsletter?<\/h3>\n\n<p>Avoid copying texts from Word documents or web pages.<\/p>\n\n<p>These texts usually have styles, HTML code, and even hidden links that can result in your email not looking as you expect, or even being categorized as spam.<\/p>\n\n<p>The recommendation is that if you don&#8217;t have much time to write your email, use the editor&#8217;s AI options to help you.<\/p>\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"830\" height=\"340\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/email-marketing-.jpg\" alt=\"Mailrelay's own IPs to improve deliverability\" class=\"wp-image-87147\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/email-marketing-.jpg 830w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/email-marketing--300x123.jpg 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/email-marketing--768x315.jpg 768w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/email-marketing--110x45.jpg 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/email-marketing--60x25.jpg 60w\" sizes=\"auto, (max-width: 830px) 100vw, 830px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">Mailrelay&#8217;s own IPs to improve the deliverability of your email campaigns<\/h2>\n\n<p>Everything we have seen so far is very important.<\/p>\n\n<p>But there is a factor that makes Mailrelay help you even more with sending deliverability.<\/p>\n\n<p><strong>Each email you send goes out from a specific IP address<\/strong>, and receiving email providers keep a record of how each IP behaves (if it sends spam, if many users mark its messages as unwanted, etc.). <\/p>\n\n<p><strong>Mailrelay has its own high-quality IP ranges, and this is important.<\/strong><\/p>\n\n<p>Because in this way, from Mailrelay, we can control the quality of the IPs and what is sent through them.<\/p>\n\n<p>All automatically so that the IPs are always in the best conditions.<\/p>\n\n<p>Having our own infrastructure is a great advantage.<\/p>\n\n<h2 class=\"wp-block-heading\">Everything is important for the deliverability of your emails<\/h2>\n\n<p>It is important to review all the points we have seen:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Make sure all settings are correct<\/li>\n\n\n\n<li>The list must be adequate, not too old, and with contacts who have requested the emails<\/li>\n\n\n\n<li>The content must be adequate, without errors, and not look like spam<\/li>\n<\/ul>\n\n<p>If any of these points are not met, it is possible that some of the emails you send end up in spam.<\/p>\n\n<p>That&#8217;s why if you have any questions, the best thing is to contact our support team so we can help you improve deliverability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In email marketing, the main thing is for emails to reach the inbox. Deliverability measures how many of your emails reach your subscribers&#8217; inboxes. Worldwide, thousands of companies rely on email to talk to their customers. However, approximately 20% of sent emails may never reach the inbox due to spam filters and sender reputation issues. [&hellip;]<\/p>\n","protected":false},"author":124,"featured_media":87154,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[588],"tags":[],"class_list":["post-87710","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-without-category"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to achieve the best email marketing deliverability with Mailrelay - Mailrelay<\/title>\n<meta name=\"description\" content=\"Discover how to improve email marketing deliverability. Avoid landing in spam with legal bulk sending, easily configure SPF\/DKIM\/DMARC, and take advantage of Mailrelay&#039;s simple interface \u2013 powerful in features and designed to maximize your results.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to achieve the best email marketing deliverability with Mailrelay - Mailrelay\" \/>\n<meta property=\"og:description\" content=\"Discover how to improve email marketing deliverability. Avoid landing in spam with legal bulk sending, easily configure SPF\/DKIM\/DMARC, and take advantage of Mailrelay&#039;s simple interface \u2013 powerful in features and designed to maximize your results.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\" \/>\n<meta property=\"og:site_name\" content=\"Mailrelay\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Mailrelay\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-07T13:37:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-07T13:37:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png\" \/>\n\t<meta property=\"og:image:width\" content=\"630\" \/>\n\t<meta property=\"og:image:height\" content=\"340\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Jose Argudo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@mailrelay\" \/>\n<meta name=\"twitter:site\" content=\"@mailrelay\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jose Argudo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\"},\"author\":{\"name\":\"Jose Argudo\",\"@id\":\"https:\/\/mailrelay.com\/en\/#\/schema\/person\/d8e868b5b67c658bb687818bc5ee08ae\"},\"headline\":\"How to achieve the best email marketing deliverability with Mailrelay\",\"datePublished\":\"2026-01-07T13:37:51+00:00\",\"dateModified\":\"2026-01-07T13:37:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\"},\"wordCount\":3016,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/mailrelay.com\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png\",\"articleSection\":[\"Without category\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\",\"url\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\",\"name\":\"How to achieve the best email marketing deliverability with Mailrelay - Mailrelay\",\"isPartOf\":{\"@id\":\"https:\/\/mailrelay.com\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png\",\"datePublished\":\"2026-01-07T13:37:51+00:00\",\"dateModified\":\"2026-01-07T13:37:56+00:00\",\"description\":\"Discover how to improve email marketing deliverability. Avoid landing in spam with legal bulk sending, easily configure SPF\/DKIM\/DMARC, and take advantage of Mailrelay's simple interface \u2013 powerful in features and designed to maximize your results.\",\"breadcrumb\":{\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage\",\"url\":\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png\",\"contentUrl\":\"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png\",\"width\":630,\"height\":340,\"caption\":\"C\u00f3mo lograr la mejor entregabilidad en email marketing en Espa\u00f1a con Mailrelay\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/mailrelay.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to achieve the best email marketing deliverability with Mailrelay\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/mailrelay.com\/en\/#website\",\"url\":\"https:\/\/mailrelay.com\/en\/\",\"name\":\"Mailrelay\",\"description\":\"Mailrelay.com - Email Marketing Software\",\"publisher\":{\"@id\":\"https:\/\/mailrelay.com\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/mailrelay.com\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/mailrelay.com\/en\/#organization\",\"name\":\"Mailrelay\",\"url\":\"https:\/\/mailrelay.com\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/mailrelay.com\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/05\/mailrelay-logo.jpg\",\"contentUrl\":\"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/05\/mailrelay-logo.jpg\",\"width\":613,\"height\":291,\"caption\":\"Mailrelay\"},\"image\":{\"@id\":\"https:\/\/mailrelay.com\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/Mailrelay\/\",\"https:\/\/x.com\/mailrelay\",\"https:\/\/www.youtube.com\/mailrelay-email-marketing\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/mailrelay.com\/en\/#\/schema\/person\/d8e868b5b67c658bb687818bc5ee08ae\",\"name\":\"Jose Argudo\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/mailrelay.com\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/03981e1d30ef3dc40ec23fd44794672480e5df7094be90a418ff4785b7058b7b?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/03981e1d30ef3dc40ec23fd44794672480e5df7094be90a418ff4785b7058b7b?s=96&d=mm&r=g\",\"caption\":\"Jose Argudo\"},\"url\":\"https:\/\/mailrelay.com\/en\/blog\/author\/jose\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to achieve the best email marketing deliverability with Mailrelay - Mailrelay","description":"Discover how to improve email marketing deliverability. Avoid landing in spam with legal bulk sending, easily configure SPF\/DKIM\/DMARC, and take advantage of Mailrelay's simple interface \u2013 powerful in features and designed to maximize your results.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/","og_locale":"en_US","og_type":"article","og_title":"How to achieve the best email marketing deliverability with Mailrelay - Mailrelay","og_description":"Discover how to improve email marketing deliverability. Avoid landing in spam with legal bulk sending, easily configure SPF\/DKIM\/DMARC, and take advantage of Mailrelay's simple interface \u2013 powerful in features and designed to maximize your results.","og_url":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/","og_site_name":"Mailrelay","article_publisher":"https:\/\/www.facebook.com\/Mailrelay\/","article_published_time":"2026-01-07T13:37:51+00:00","article_modified_time":"2026-01-07T13:37:56+00:00","og_image":[{"width":630,"height":340,"url":"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png","type":"image\/png"}],"author":"Jose Argudo","twitter_card":"summary_large_image","twitter_creator":"@mailrelay","twitter_site":"@mailrelay","twitter_misc":{"Written by":"Jose Argudo","Est. reading time":"15 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#article","isPartOf":{"@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/"},"author":{"name":"Jose Argudo","@id":"https:\/\/mailrelay.com\/en\/#\/schema\/person\/d8e868b5b67c658bb687818bc5ee08ae"},"headline":"How to achieve the best email marketing deliverability with Mailrelay","datePublished":"2026-01-07T13:37:51+00:00","dateModified":"2026-01-07T13:37:56+00:00","mainEntityOfPage":{"@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/"},"wordCount":3016,"commentCount":0,"publisher":{"@id":"https:\/\/mailrelay.com\/en\/#organization"},"image":{"@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage"},"thumbnailUrl":"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png","articleSection":["Without category"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/","url":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/","name":"How to achieve the best email marketing deliverability with Mailrelay - Mailrelay","isPartOf":{"@id":"https:\/\/mailrelay.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage"},"image":{"@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage"},"thumbnailUrl":"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png","datePublished":"2026-01-07T13:37:51+00:00","dateModified":"2026-01-07T13:37:56+00:00","description":"Discover how to improve email marketing deliverability. Avoid landing in spam with legal bulk sending, easily configure SPF\/DKIM\/DMARC, and take advantage of Mailrelay's simple interface \u2013 powerful in features and designed to maximize your results.","breadcrumb":{"@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#primaryimage","url":"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png","contentUrl":"https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png","width":630,"height":340,"caption":"C\u00f3mo lograr la mejor entregabilidad en email marketing en Espa\u00f1a con Mailrelay"},{"@type":"BreadcrumbList","@id":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/mailrelay.com\/en\/"},{"@type":"ListItem","position":2,"name":"How to achieve the best email marketing deliverability with Mailrelay"}]},{"@type":"WebSite","@id":"https:\/\/mailrelay.com\/en\/#website","url":"https:\/\/mailrelay.com\/en\/","name":"Mailrelay","description":"Mailrelay.com - Email Marketing Software","publisher":{"@id":"https:\/\/mailrelay.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/mailrelay.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/mailrelay.com\/en\/#organization","name":"Mailrelay","url":"https:\/\/mailrelay.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/mailrelay.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/05\/mailrelay-logo.jpg","contentUrl":"https:\/\/mailrelay.com\/wp-content\/uploads\/2019\/05\/mailrelay-logo.jpg","width":613,"height":291,"caption":"Mailrelay"},"image":{"@id":"https:\/\/mailrelay.com\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/Mailrelay\/","https:\/\/x.com\/mailrelay","https:\/\/www.youtube.com\/mailrelay-email-marketing"]},{"@type":"Person","@id":"https:\/\/mailrelay.com\/en\/#\/schema\/person\/d8e868b5b67c658bb687818bc5ee08ae","name":"Jose Argudo","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/mailrelay.com\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/03981e1d30ef3dc40ec23fd44794672480e5df7094be90a418ff4785b7058b7b?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/03981e1d30ef3dc40ec23fd44794672480e5df7094be90a418ff4785b7058b7b?s=96&d=mm&r=g","caption":"Jose Argudo"},"url":"https:\/\/mailrelay.com\/en\/blog\/author\/jose\/"}]}},"uagb_featured_image_src":{"full":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png",630,340,false],"thumbnail":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay-150x150.png",150,150,true],"medium":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay-300x162.png",300,162,true],"medium_large":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png",630,340,false],"large":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png",630,340,false],"1536x1536":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png",630,340,false],"2048x2048":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay.png",630,340,false],"testimonials":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay-110x59.png",110,59,true],"author-image":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay-60x32.png",60,32,true],"yarpp-thumbnail":["https:\/\/mailrelay.com\/wp-content\/uploads\/2025\/11\/Como-lograr-la-mejor-entregabilidad-en-email-marketing-en-Espana-con-Mailrelay-120x120.png",120,120,true]},"uagb_author_info":{"display_name":"Jose Argudo","author_link":"https:\/\/mailrelay.com\/en\/blog\/author\/jose\/"},"uagb_comment_info":293,"uagb_excerpt":"In email marketing, the main thing is for emails to reach the inbox. Deliverability measures how many of your emails reach your subscribers&#8217; inboxes. Worldwide, thousands of companies rely on email to talk to their customers. However, approximately 20% of sent emails may never reach the inbox due to spam filters and sender reputation issues.&hellip;","_links":{"self":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/posts\/87710","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/users\/124"}],"replies":[{"embeddable":true,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/comments?post=87710"}],"version-history":[{"count":1,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/posts\/87710\/revisions"}],"predecessor-version":[{"id":87711,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/posts\/87710\/revisions\/87711"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/media\/87154"}],"wp:attachment":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/media?parent=87710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/categories?post=87710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/tags?post=87710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}