{"id":32636,"date":"2015-02-04T10:13:17","date_gmt":"2015-02-04T10:13:17","guid":{"rendered":"https:\/\/wp.lvh.me\/blog\/2015\/02\/04\/why-some-emails-could-get-in-sending-queue\/"},"modified":"2026-10-22T17:09:40","modified_gmt":"2026-10-22T17:09:40","slug":"why-some-emails-could-get-in-sending-queue","status":"publish","type":"post","link":"https:\/\/mailrelay.com\/en\/blog\/2015\/02\/04\/why-some-emails-could-get-in-sending-queue\/","title":{"rendered":"Queued Emails: Why Do Emails Get Stuck in the Queue?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Sometimes, when you send a <a href=\"https:\/\/mailrelay.com\/en\/blog\/2017\/01\/17\/how-to-create-a-mailing\/\">mailing<\/a>, some of the emails addressed to your subscribers may remain as <em><strong>queued emails<\/strong><\/em> for a while.<\/p>\n\n<p class=\"wp-block-paragraph\">That&#8217;s what we&#8217;ll explain in this article, so you know the possible causes of <strong>queued emails<\/strong> and when you&#8217;ll need to contact our <a href=\"https:\/\/mailrelay.com\/en\/contact\/\">support team<\/a>.<\/p>\n\n<p class=\"wp-block-paragraph\">We&#8217;ve already introduced the concept of <strong>queued emails<\/strong> in previous articles, for example in <a href=\"https:\/\/mailrelay.com\/en\/blog\/2014\/09\/18\/messages-rejected-by-an-isp-due-to-the-number-of-emails-sent\/\">&#8220;Messages rejected by an ISP due to the number of emails sent&#8221;<\/a>.<\/p>\n\n<p class=\"wp-block-paragraph\">If you want to know <strong>how to fix queued emails or messages<\/strong>, stick around: we&#8217;ll tell you all about it here at <a href=\"https:\/\/mailrelay.com\/en\/\">Mailrelay<\/a>.<\/p>\n\n<p class=\"wp-block-paragraph\">But first:<\/p>\n\n\n<h2 class=\"wp-block-heading\">What does it mean when messages or emails are queued?<\/h2>\n\n<p class=\"wp-block-paragraph\">When a <strong>message we&#8217;re sending gets stuck in the queue<\/strong>, it means it can&#8217;t be sent at that moment and has to stay in the outgoing queue until the problem is solved.<\/p>\n\n<p class=\"wp-block-paragraph\">Some <strong>queued emails<\/strong> may need to be dealt with quickly to avoid problems in our work, although sometimes the platform may not be the only one to blame.<\/p>\n\n<h3 class=\"wp-block-heading\">Where can I see my queued messages?<\/h3>\n\n<p class=\"wp-block-paragraph\">When we send a <a href=\"https:\/\/mailrelay.com\/en\/envio-masivo-de-emails-gratis-2\/\">bulk email campaign<\/a>, we can see which emails are queued <strong>in our campaigns if the number of processed emails is higher than the number of delivered, ignored and bounced ones<\/strong>. This means some messages are waiting to retry delivery at the request of the receiving server.<\/p>\n\n<h3 class=\"wp-block-heading\">Why can emails get stuck in the queue?<\/h3>\n\n<p class=\"wp-block-paragraph\">Usually, <strong>emails get queued<\/strong> for one of these reasons:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Occasional incidents at Mailrelay:<\/strong><\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\"><strong>Anything from a Wi-Fi outage to a system failure<\/strong> can cause a scheduled message to get queued. Check whether your computer or phone has a poor connection.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Queued emails in Gmail: rejections due to <a href=\"https:\/\/mailrelay.com\/en\/blog\/2014\/09\/18\/messages-rejected-by-an-isp-due-to-the-number-of-emails-sent\/\">sending volume<\/a>:<\/strong><\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">This usually happens with large ISPs such as Gmail, Outlook.com, Yahoo!, etc., since smaller ones don&#8217;t usually have the technical infrastructure to block messages.<\/p>\n\n<p class=\"wp-block-paragraph\">These rejections aren&#8217;t usually permanent; what happens is that delivery is much slower and the emails stay <strong>as queued emails or messages in Gmail.<\/strong><\/p>\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"340\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/01\/envios-encolados-1.png\" alt=\"why emails get stuck in the queue\" class=\"wp-image-32638\" style=\"aspect-ratio:1.8529411764705883;width:630px;height:auto\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/01\/envios-encolados-1.png 630w, https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/01\/envios-encolados-1-300x162.png 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/01\/envios-encolados-1-110x59.png 110w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>SPAM-related rejections:<\/strong><\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">When we send a bulk email campaign, the content of the emails and the way subscribers react to them are analyzed little by little. That&#8217;s exactly what this slower delivery flow is for: to examine our campaign closely.<\/p>\n\n<p class=\"wp-block-paragraph\">If they notice that users reject our content as unwanted or harmful, our messages will probably be considered spam, and any <strong>queued message or email<\/strong> we have will be put on hold.<\/p>\n\n<p class=\"wp-block-paragraph\">The emails usually end up being delivered, unless one of the large ISPs blocks the sending IP, in which case the campaign does come to a halt.<\/p>\n\n<p class=\"wp-block-paragraph\">It&#8217;s not common, but it can happen.<\/p>\n\n<h2 class=\"wp-block-heading\">How to fix queued emails or messages [Solutions for getting your messages sent]<\/h2>\n\n<p class=\"wp-block-paragraph\">Well, on the one hand, it&#8217;s not something that happens often. On the other hand, we can&#8217;t prevent it 100%. But here are some options:<\/p>\n\n<p class=\"wp-block-paragraph\">The first thing to do is <strong>wait<\/strong>, about four hours or so, and then check the status of the campaign:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>If we see fewer <strong>&#8220;queued&#8221; emails<\/strong>, we&#8217;ll keep waiting, since delivery is in progress<\/li>\n\n\n\n<li>If the number of &#8220;queued&#8221; emails hasn&#8217;t gone down, we&#8217;ll <a href=\"https:\/\/mailrelay.com\/en\/contact\/\">contact support<\/a><\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">How can we prevent this from happening with our newsletters?<\/h3>\n\n<ol class=\"wp-block-list\">\n<li>Keep in mind that <strong>Mailrelay&#8217;s IPs are shared<\/strong> (although you can actually get dedicated IPs). Because they&#8217;re shared, the campaigns of your IP &#8220;neighbors&#8221; affect your own campaigns.<br\/><br\/>However, if we all follow email marketing best practices, we all benefit and avoid creating queued emails.<\/li>\n\n\n\n<li><strong>Sending mailings at a volume that suits our reputation<\/strong> and doing everything we can to avoid being marked as SPAM will help not only us but also our IP neighbors.<\/li>\n\n\n\n<li>Remember that <strong>your sending domain can be blocked<\/strong>. In the article &#8220;Why we shouldn&#8217;t use newly registered domains as senders&#8221; we already shared some tips on this.<br\/><br\/>In the end, it&#8217;s all about following the usual best practices.<\/li>\n<\/ol>\n\n<h2 class=\"wp-block-heading\">Conclusions on Queued Emails at Mailrelay<\/h2>\n\n<p class=\"wp-block-paragraph\">So, to answer the question of <strong>why emails get stuck in the queue<\/strong>: it&#8217;s mainly due to a sending volume that is too high for the reputation of the IP or domain, or to our having been marked as SPAM a large number of times. We&#8217;ll check the status of the campaign and, if time goes by and the emails still haven&#8217;t been delivered, we&#8217;ll contact support.<\/p>\n\n<div class=\"wp-block-group has-very-light-gray-background-color has-background\" style=\"border-radius:8px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Is it possible to delete queued emails?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By default, it&#8217;s not possible to delete the sending queue and stop the emails from being delivered later, when the receiving server finally accepts them. But there are times when this is necessary, for example with a time-limited promotion or when local laws prohibit sending after a certain time of day. If this is your case, contact us and we can enable a button in your dashboard to delete queued emails manually.<\/p>\n<\/div><\/div>\n\n<p class=\"wp-block-paragraph\">This problem is usually related to <a href=\"https:\/\/mailrelay.com\/en\/glossary\/deliverability-in-email-marketing\/\">deliverability in email marketing<\/a> in general: the better you take care of these aspects, the fewer emails will get stuck in the queue.<\/p>\n\n<p class=\"wp-block-paragraph\">If you want to send emails to your subscriber list, Mailrelay offers you up to 80,000 emails per month to up to 20,000 subscribers for free, so you can sell at zero cost. Discover our <a href=\"https:\/\/mailrelay.com\/en\/email-marketing\/\">email marketing service<\/a> and take your business to the next level!<\/p>\n\n<p class=\"wp-block-paragraph\">Other articles that may interest you: <\/p>\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/mailrelay.com\/en\/blog\/2021\/01\/26\/11-tips-for-writing-the-text-for-your-email-marketing-campaigns\/\">How to write better email copy: 11 effective tips<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/mailrelay.com\/en\/blog\/2022\/10\/31\/12-newsletter-examples-tips-and-secrets-for-creating-effective-campaigns\/\">Newsletter examples<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/mailrelay.com\/en\/blog\/2018\/05\/22\/how-to-write-an-irresistible-sales-email-without-feeling-uncomfortable\/\">Writing a sales email<\/a><\/li>\n<\/ul>\n\n<div class=\"wp-block-group has-white-color has-text-color has-background has-link-color wp-elements-1\" style=\"border-radius:8px;background-color:#0072c6;margin-top:32px;margin-bottom:32px;padding-top:24px;padding-right:28px;padding-bottom:24px;padding-left:28px\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading has-white-color has-text-color\">Recommended reading<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/en\/blog\/2014\/10\/02\/bounce-reasons-and-recommended-actions\/\">Mailing bounce reasons and solutions<\/a><\/strong><br\/>Why emails bounce and what to do in each case.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/en\/blog\/2017\/11\/22\/accounts-paused-or-blocked-reasons-and-solutions\/\">Paused or blocked accounts: reasons and solutions<\/a><\/strong><br\/>Why a sending account gets paused and how to start sending again.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/07\/how-to-achieve-the-best-email-marketing-deliverability-with-mailrelay\/\">How to achieve the best email marketing deliverability<\/a><\/strong><br\/>What deliverability measures and which settings get your emails into the inbox.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/mailrelay.com\/en\/blog\/2014\/11\/28\/you-are-not-receiving-emails-on-your-own-corporate-domain\/\">Emails aren&#8217;t reaching your own corporate domain<\/a><\/strong><br\/>Why you don&#8217;t receive your own campaigns in your company email and how to fix it.<\/p>\n<\/div><\/div>\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.linkedin.com\/in\/noesoriano\/?originalSubdomain=es\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"630\" height=\"250\" src=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/02\/noe-soriano.webp\" alt=\"No&#xE9; Soriano\" class=\"wp-image-61620\" srcset=\"https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/02\/noe-soriano.webp 630w, https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/02\/noe-soriano-300x119.webp 300w, https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/02\/noe-soriano-110x44.webp 110w, https:\/\/mailrelay.com\/wp-content\/uploads\/2015\/02\/noe-soriano-60x24.webp 60w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Sometimes, when you send a mailing, some of the emails addressed to your subscribers may remain as queued emails for a while. That&#8217;s what we&#8217;ll explain in this article, so you know the possible causes of queued emails and when you&#8217;ll need to contact our support team. We&#8217;ve already introduced the concept of queued emails [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7800,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[882,562],"tags":[],"class_list":["post-32636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-deliverability-and-technical-aspects","category-email-marketing-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Queued Emails or Messages: Why Do They Get Stuck? | Mailrelay<\/title>\n<meta name=\"description\" content=\"Not sure why your emails are stuck in the queue? At Mailrelay we explain it in detail, along with how to fix the problem. Say goodbye to queued messages!\" \/>\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\/2015\/02\/04\/why-some-emails-could-get-in-sending-queue\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Queued Emails or Messages: Why Do They Get Stuck? | Mailrelay\" \/>\n<meta property=\"og:description\" content=\"Not sure why your emails are stuck in the queue? At Mailrelay we explain it in detail, along with how to fix the problem. 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