{"id":91127,"date":"2026-01-27T13:27:00","date_gmt":"2026-01-27T13:27:00","guid":{"rendered":"https:\/\/mailrelay.com\/blog\/2026\/08\/20\/professional-smtp-and-api-for-transactional-emails-with-statistics\/"},"modified":"2026-09-26T07:25:12","modified_gmt":"2026-09-26T07:25:12","slug":"professional-smtp-and-api-for-transactional-emails-with-statistics","status":"publish","type":"post","link":"https:\/\/mailrelay.com\/en\/blog\/2026\/01\/27\/professional-smtp-and-api-for-transactional-emails-with-statistics\/","title":{"rendered":"Professional SMTP and API for Transactional Emails with Statistics"},"content":{"rendered":"\n

Sending and delivering transactional emails calls for powerful, reliable email marketing platforms.<\/p>\n\n

These transactional emails need to be delivered quickly and effectively.<\/strong><\/p>\n\n

That’s because of their very nature, since they’re usually important emails tied to user actions (purchases, sign-ups, notifications, etc.).<\/p>\n\n

In this article, we’ll look at the options Mailrelay offers for this type of email.<\/p>\n\n

<\/p>\n\n

What are transactional emails and why do they matter?<\/h2>\n\n

Transactional emails are automated messages sent to a recipient after a specific action the user has taken. <\/p>\n\n

This could be a purchase, a sign-up, a password reset request, and so on.<\/p>\n\n

So they’re emails sent in response to a user action.<\/strong><\/p>\n\n

As you can imagine, this type of email is key to any business.<\/p>\n\n

These messages usually have much higher open and click rates than a promotional email. <\/p>\n\n

The reason is obvious: the recipient is expecting these emails, unlike an unexpected mass email.<\/p>\n\n

That’s why it’s important for these emails to reach the inbox<\/a> as soon as possible.<\/p>\n\n

Mailrelay lets you send this type of email using either SMTP or the API.<\/p>\n\n

We’ll look at both options.<\/p>\n\n

Send your transactional emails with Mailrelay<\/p>

Connect your website, store or app via SMTP or API and track opens, clicks and bounces in real time. Try it free for 30 days.<\/p>Try SMTP for free<\/a><\/div>\n\n\n\n

\"Professional<\/figure>\n\n

Professional SMTP: the foundation for sending transactional emails with confidence<\/h2>\n\n

SMTP stands for Simple Mail Transfer Protocol<\/a>. <\/p>\n\n

It’s the standard protocol for sending emails over the Internet.<\/p>\n\n

When we talk about a \u201cprofessional SMTP server,\u201d we mean a dedicated service. <\/p>\n\n

It’s a service that relays your emails to the final recipient whenever the system you’re using requests it.<\/p>\n\n

What advantages does using an SMTP service have over other alternatives, like hosting?<\/strong><\/p>\n\n

There are several advantages.<\/p>\n\n

To start with infrastructure, an SMTP service like Mailrelay’s has a server infrastructure, dedicated IPs, and staff specifically geared toward sending bulk and transactional emails.<\/p>\n\n

That’s not the case with other alternatives, like hosting.<\/p>\n\n

A solid infrastructure helps the deliverability of your email campaigns.<\/strong><\/p>\n\n

So your emails reach their destination instead of the spam folder.<\/p>\n\n

On the other hand, an SMTP service can help you avoid sending to bounced addresses, being marked as spam, and so on. This helps keep your sender reputation intact.<\/p>\n\n

And what about sending volume?<\/strong><\/p>\n\n

That’s another point to consider.<\/p>\n\n

Most alternatives, like the hosting we mentioned, aren’t built for sending bulk emails, so you may run into restrictions.<\/p>\n\n

Restrictions you wouldn’t run into with an SMTP service dedicated to sending emails.<\/p>\n\n

\u00b7 Is it complicated to set up Mailrelay’s SMTP service?<\/h3>\n\n

Quite the opposite \u2014 it’s very simple to set up.<\/p>\n\n

In your Mailrelay account, go to Settings<\/strong> – SMTP Settings<\/strong> to activate the service and get your connection details.<\/p>\n\n

This screen will be very useful, since here you can:<\/p>\n\n