The Newsletter Plugin not sending emails

The Newsletter Plugin Not Sending Emails? How to Fix

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Is The Newsletter Plugin not sending emails reliably?

When sending newsletters, you should use a separate SMTP plugin for better deliverability.

In this article, we’ll explain how to use the best SMTP plugin to send newsletters.

Fix Your WordPress Newsletters Now

If your newsletter plugin has its own SMTP settings, you may still have email deliverability problems with regular WordPress emails, or notifications from your contact form plugins. In some cases, having multiple plugins with their own SMTP settings can cause a conflict.

For the best results, make sure every email plugin you install is compatible with WP Mail SMTP. We’re going to show you how to set it up with The Newsletter Plugin here, but any other plugin that uses wp_mail() should work the same way.

How To Fix The Newsletter Plugin Not Sending Email

1. Install the WP Mail SMTP Plugin

The Newsletter Plugin used to have its own SMTP settings, but they’re now obsolete. You’ll see a warning message in the plugin if you try to access them.

The Newsletter Plugin SMTP obsolete warning

To fix this, we’re going to install WP Mail SMTP – the best SMTP plugin for WordPress.

WP Mail SMTP reconfigures WordPress’ built-in email function so you can use an external email service provider. It also has a ton of extra features that’ll help you track the success of your newsletters.

For example, WP Mail SMTP adds list-unsubscribe headers to all emails sent from WordPress. This is essential, because if your SMTP plugin doesn’t add those headers, you won’t comply with Google’s new sender requirements. (Learn more about list-unsubscribe headers in our guide.)

To download the plugin, go to the WP Mail SMTP website and log in to your account. You’ll find the download button under the Downloads tab.

Download the WP Mail SMTP plugin

Switch to your WordPress dashboard and upload the zip file. If you need help with this part, learn how to install a WordPress plugin.

Install WP Mail SMTP

After you install the plugin, be sure to Activate WP Mail SMTP. This will start the Setup Wizard so we can set up your email provider.

2. Connect to a Mailer Service

In this step, we’ll pick an email service that’ll be used to fix The Newsletter Plugin not sending emails. It’ll also fix all of your other WordPress emails at the same time.

Click on the Let’s Get Started button to begin.

click the Let's Get Started button

On the first screen, you’ll be asked to choose a new email provider for your website.

Select your SMTP mailer

The choice you make here will depend on:

  • How many emails you’ll send each month, taking every plugin into account
  • What your budget is
  • Whether you send any transactional emails, like WooCommerce order emails, in addition to your newsletters.

If you only send out newsletters, you don’t necessarily need a transactional email provider. Newsletters aren’t usually time-sensitive, so it doesn’t matter if they’re not delivered immediately.

However, transactional email providers have other benefits in addition to fast delivery. For example, they’ll be more likely to support bulk email sending, which means sending large numbers of emails all at once. As your list grows, that’ll become more and more important.

If you’re in any doubt, we recommend SendLayer,, or Brevo. These email service providers strike a good balance between quality service and cost.

Once you’ve decided on a mailer, the next step is to set up your account and connect it to your website.

Click on the link below to open our setup documentation for your new email provider:

Mailers available in all versions Mailers in WP Mail SMTP Pro
SendLayer Amazon SES Microsoft 365 /
Brevo Zoho Mail
Google Workspace / Gmail
Other SMTP

Need a hand?

Our Elite license includes White Glove Setup for SendLayer,, or Brevo.

Want to set up multiple mailers? You can do so in the Additional Connections settings, then select a Backup Connection and configure Smart Routing.

3. Enable Email Logging and Alerts

As you move through the Setup Wizard, you’ll be asked if you want to enable 2 important features: Detailed Email Logs and Instant Email Alerts.

Enabling email logs and email alerts in the WP Mail SMTP Setup Wizard

We recommend that you enable both of these options.

If you have the Pro version of the plugin, Detailed Email Logs will save the email headers to Complete Email Reports. If you want to log the entire contents of every email, we’ll show you how later in the tutorial.

Turning this feature on also gives you the option to receive the Weekly Email Summary. This will help you to keep track of your email deliverability without logging into WordPress. You’ll get an email every Monday that shows you how many emails were sent, and how many failed.

Email Summary With Statistics in WP Mail SMTP Pro

And finally, the Instant Email Alerts will notify you whenever an email fails to send. This gives you the chance to quickly resolve any problems so your emails start sending again.

An email alert notification

Go ahead and select all the options here and complete the Setup Wizard when you’re done. You’ll get an automatic test email to confirm that your new email provider is working.

4. Improve Newsletter Open and Click Tracking

The Newsletter Plugin has its own open and click tracking that shows statistics for your email marketing messages.

But you can’t see statistics for your other WordPress emails, like contact form messages and password resets.

If you want to track the performance of your entire WordPress site in one place, this will only get you part-way there.

Open and click statistics in The Newsletter Plugin

We can improve on this with the email open and click tracking in WP Mail SMTP. It shows you open and click statistics for your newsletters, forms, WooCommerce emails, and more.

And the great news is that you can use both types of open and click tracking at the same time if you’d like to.

Let’s enable the additional email tracking features in WP Mail SMTP.

Don’t worry: WP Mail SMTP email tracking won’t conflict with the tracking features in The Newsletter Plugin. When someone clicks a link in your newsletter, one tracking link will simply redirect to the other one.

On the next screen of the Setup Wizard, select the Track when an email is opened and Track when a link in an email is clicked options.

Configuring email log settings in the WP Mail SMTP Setup Wizard

You can also store all the content of your emails and save file attachments if you want. These features are useful if you ever need to resend an email or print file attachments.

If you need to change these settings later, go to WP Mail SMTP » Settings » Email Log. For more details on WP Mail SMTP email logs, check out our email logging tutorial.

Great! Now we’ve fixed The Newsletter Plugin not sending email and we’ve improved your click tracking and open tracking too.

Let’s look at 2 new ways to view that open and click tracking data.

5. View Sent Newsletters in Your Email Logs

With WP Mail SMTP email tracking enabled, you can now see a lot more detail about your WordPress emails. Along with the headers, we can also see opens and clicks for individual messages.

The statistics are updated immediately, so we can check on performance now.

Let’s take a look at the Email Log.

Open the email log in WP Mail SMTP

At the top of the email log page, we can see 2 emails from The Newsletter Plugin: 1 test newsletter, and one test email.

The Newsletter Plugin email log table

Looking a little closer, we can see that both emails were opened and clicked.

The Newsletter Plugin email log details

And we can open the email log to see all the available information.

The Newsletter Plugin email log info

You’ll also notice that you have some new features here:

  • Print: Print a copy of the email log, or save it as a PDF file
  • Export: Export the email log to a CSV or XLS file, or export the entire email as an EML file
  • Resend: Send the newsletter to the same person, or forward it to someone else.

Next, let’s look at some new reporting options so you can easily monitor your newsletter deliverability.

6. Check Your Email Reports and Newsletter Statistics

Now you’ve fixed The Newsletter Plugin not sending email, your Email Reports will keep you informed about deliverability and performance.

Let’s take a look at the Email Reports in WP Mail SMTP.

WP Mail SMTP Email Reports menu

At the top, we can see the email report for all emails sent from this website. This chart displays sent and failed emails as well as email tracking data.

Email report graph over 30 days

Underneath, we can see information about emails sent from your WordPress site.

WP Mail SMTP automatically groups emails by subject line. That allows you to easily see newsletter performance.

Here’s an example with higher statistics so you can easily see how it works:

Email Report grouped by subject line

Now you have much more information about your newsletter performance. And you can click the Graph icon to make a custom chart for any individual newsletter.

And that’s it! Now you know how to fix The Newsletter Plugin not sending emails with SMTP.

Fix Your WordPress Newsletters Now

Next, Turn Your Newsletter Into a Community

Have you thought about creating an online community based on your newsletter? A community could inspire new ways to promote and monetize your content.

To start building yours, check out our list of the best membership plugins for WordPress.

You might also want to see our instructions for fixing Elementor Forms email issues if you’re facing any.

Ready to fix your emails? Get started today with the best WordPress SMTP plugin. WP Mail SMTP Elite includes full White Glove Setup and offers a 14-day money-back guarantee.

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