Introducing WP Mail SMTP 3.7

Introducing WP Mail SMTP 3.7 – Backup Connection and Smart Email Routing

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We’re thrilled to be rolling out a new version of WP Mail SMTP, which will give our Pro users greater control over email delivery than ever before.

Introducing Backup Connections and Smart Email Routing.

Wondering what makes this update so exciting?

With WP Mail SMTP 3.7, you get additional mailer connections that you can use in exciting ways.

For example, you can set one of your additional connections as your backup connection. You can also use additional connections for different purposes with advanced routing rules.

Read on to learn about these new and super useful features.

Never Lose an Email With Backup Connection

WP Mail SMTP is highly effective at making sure your emails always get delivered. However, there’s a chance of a technical issue or an outage on your Primary Connection, causing email failures.

To address this issue, we’ve built the new Backup Connection feature. Now, you can add an additional connection that serves as your backup when your Primary Connection fails.

The result? Your emails continue to send, and your business keeps running without interruptions even if your Primary Connection is down.

SendLayer backup connection

The Backup Connection setup process is just as easy as configuring your Primary Connection.

Just configure your mailers as you normally would from the new Additional Connections tab, and you’re good to go!

Additional Connections

We think that every email that fails to send is a lost opportunity for growing your business. With a backup connection, you have the perfect fail-safe to make sure your emails always reach the recipient without a hitch.

Conditional Logic for WordPress Emails

We’re also super excited to be rolling out the brand new Smart Routing feature, which was highly requested by many of you.

Using Smart Routing, you can send emails from different mailers based on conditions defined by you.

For instance, would you like to send your WooCommerce order emails via Sendinblue while your form notifications are sent via SendLayer (or any other mailer)?

If so, then Smart Routing is the perfect feature for you!

Smart Routing SendLayer

It’s worth noting that emails that don’t meet your smart routing rules will continue to be sent via your Primary Connection.

There are many possible email routing rules you can create with this feature.

You have the flexibility to define conditions based on various email elements like Subject, From Email, Initiator, and more to get full control over your emails.

Smart Routing rules

As one of the most highly requested features, we’ve made Smart Routing super easy to work with, so you can freely create the most effective email workflows for your business.

Looking Onwards

This release includes some of the biggest additions we’ve made to WP Mail SMTP the whole year.

For the next year, we’ve already got several super exciting ideas for making WP Mail SMTP even more useful and flexible for our customers.

Get WP Mail SMTP Pro

Meanwhile, we hope you enjoy the added flexibility that our new features offer. Make sure to try it out, and let us know what you think!



  1. I am having a few issues and they are separate. 1) my initial web designer set me up with a plug in email that keeps bouncing. I see that my name deborah was misspelled but I can’t seem to figure out how to remedy this. 2) I can only log in through Blue Host and I want to be able to log in directly to Word Press but in order to reset my password I have to submit an email address which you are saying is not valid. I have a few issues that really need to be fixed and the chat person closed my chat while saying he was getting his manager.

    1. Hi Deborah,

      1) By default, your WordPress email notifications will be sent to your WordPress administrator email address. You can change the administrator email address under the WordPress Settings -> General area.

      You can set your preferred email address as your WordPress admin email. In case it helps, you can also contact your hosting support and request them to change the admin email for your WordPress site.

      2) Once you have resolved the above issue, you should be able to reset your password and log into your site.

      I hope this helps. Thanks!

  2. Dear
    This one as below i need help
    ‘You cannot send an email. Mailer is not properly configured. Please check your

    thanks for your support

    1. Hi Songpol,

      First of all, you need to configure a mailer on your site by following this guide.

      Then, when you send a test email from WP Mail SMTP > Tools area, you should be able to see the full error if there’s any issue. Here’s a screenshot of the option to get a full error log. This will provide you with an idea of what might be going on.

      In most cases, your server’s Firewall or ModSecurity rules block SMTP connection requests.

      Also, you can check WP Mail SMTP -> Tools -> Debug Events section to see if there are any errors (refer debug events).

      Then, get in touch with your hosting/email support with the full error log, and they should be able to assist you further.

      I hope this helps. Thanks!

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