WordPress not sending emails on AWS

How to Fix WordPress Emails Not Sending on AWS EC2

Editorial Note: We may earn a commission when you visit links on our website.

Is WordPress not sending email notifications on AWS?

This is a common problem with WordPress sites on EC2, but it’s easy to fix.

In this article, we’ll show you get emails working reliably with WordPress on EC2.

Fix Your WordPress Emails Now

Why Am I Not Receiving Emails From My WordPress Site?

There are 3 reasons why emails from your WordPress site aren’t sending:

  • SMTP is disabled or not configured on your EC2 instance or hosting plan.
  • There’s a problem with your plugin notification settings that’s causing emails not to send.
  • WordPress is sending emails, but they’re not authenticated, so they’re being caught by spam filters on their way to the recipient.

On AWS, you can ask for email sending limitations on port 25 to be lifted. This allows you to send email from your EC2 instance.

WordPress on Amazon EC2 instance

But even then, you’ll likely still run into the issue of WordPress emails going to spam because your emails won’t be authenticated as they’re sent.

In this step-by-step guide, we’ll explain the best way to fix all of these issues with WordPress emails on AWS EC2.

If you’re using Amazon Lightsail, we have a separate guide on how to set up WordPress email on Lightsail.

How to Fix WordPress Not Sending Email on AWS EC2

1. Install WP Mail SMTP on EC2

WP Mail SMTP is the best SMTP plugin for WordPress. It lets you easily send WordPress email through a 3rd party email provider or SMTP server.

This gives you the flexibility to use a free or paid email provider depending on the nature of the emails and the quantity you need to send.

The Bitnami AMI comes with the free version of WP Mail SMTP preinstalled. This is the best choice if you’re just starting out with WordPress on AWS.

Bitnami WordPress Certified Amazon Machine Image (AMI)

Before continuing with the tutorial, be sure to update the pre-installed WP Mail SMTP plugin to the latest version.

If you’re a Pro customer, you’ll want to deactivate the free version on your EC2 instance. Then download the paid version from your WP Mail SMTP account and upload it to your WordPress site on AWS.

Download WP Mail SMTP to fix WPForms contact form not sending email

Setting up WP Mail SMTP is straightforward. The Setup Wizard will open as soon as you activate WP Mail SMTP. You can re-start the wizard at any time by clicking the Launch Setup Wizard button in your WP Mail SMTP settings.

Just know that re-starting the wizard after the initial setup might reset your mailer configuration.

2. Configure Email Service Provider or SMTP Server

Now we can choose a new provider to handle outgoing WordPress emails on AWS.

Click the Let’s Get Started button to begin.

Start the WP Mail SMTP setup wizard to fix WPforms not sending email

On the next screen, click the mailer you want to use from the list. WP Mail SMTP supports free and paid email providers, including:

Most providers have limits, although none are as restrictive as EC2’s default configuration.

Keep in mind that:

  • A transactional mailer like SendLayer, SMTP.com, or Brevo will be best for most sites. These providers are able to handle a large volume of emails and are known to be highly reliable.
  • Gmail is best for small sites. You may run into issues if you use it for sites that generate a lot of emails, due to Google’s sending limits.
  • With Other SMTP, you can also use constants to securely enter SMTP connection details if you prefer that method. It’s important to use the correct SMTP port with Other SMTP to avoid connection issues or timeouts.

Choose SMTP Mailer

When you’ve chosen your mailer, open up our documentation to complete the setup steps on the provider’s side.

Want to set up multiple mailers? You can do so in the Additional Connections settings after you finished the Setup Wizard. Then select a Backup Connection and configure Smart Routing.

Once you’re done setting everything up with your mailer, you can come back to this post to finish fixing your AWS emails.

3. Enable Email Logging in WordPress

At the end of the wizard, WP Mail SMTP Pro customers will get the option to turn on email logging and email alerts in the plugin.

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

Detailed Email Logs let you easily monitor sent emails to see if they were delivered successfully. You can view logs in a list, or see a chart on the WordPress dashboard.

The exact statuses you see in the email log are dependent on the mailer service you’ve chosen.

WP Mail SMTP Pro dashboard widget

Turning on email logging automatically enables Complete Email Reports, where you can see all kinds of helpful email data. The Weekly Email Summary will deliver the past week’s email delivery stats to your inbox.

Instant Email Alerts notify you if your site fails to send an email. The message will include details to help you fix the problem and get your emails sending properly again.

An email alert notification

If you enable email logging, then the next scre

This feature also lets you:

  • Track email opens and link clicks
  • Save attachments
  • Export logs to a spreadsheet
  • Print logs
  • And more

If you’d like to see how this works, check out this guide on how to log your WordPress emails.

Now we can use WP Mail SMTP to check that your DNS is correctly configured.

4. Verify DNS Records in WP Mail SMTP

Depending on your email provider, you may have been asked to create new DNS records to authenticate your emails.

WP Mail SMTP includes a domain checker that will automatically scan your new DNS records for issues.

You can use it by clicking the Email Test tab in the plugin.

Test Cloudflare email in WordPress

Enter the recipient address for your test email and hit Send Email.

Send test email from WP Mail SMTP

If everything’s set up correctly, you’ll see a green message.

Test Cloudflare email in WordPress - success message

If WP Mail SMTP detects any issues with your DNS, it’ll show a warning.

Deliverability should be improved warning message

Along with the warning, you’ll see some information on the steps you need to take to improve email deliverability. We’ve published 2 more guides that’ll help resolve the most common DNS issues:

  • How to Create a DMARC Record: This article includes a basic DMARC example that will work on most domains. You can tweak the example if you’d like a more restrictive rule.
  • How to Merge Multiple SPF Records: If you already have an SPF record set up, it’s important not to add more. This guide explains how to merge multiple SPF records into 1 line.

Now let’s look at ways to make managing email settings easier across your plugins.

5. Force the Same Sender Email in All Plugins

Many plugins use the site administrator email as the recipient for notifications. WordPress also sends email notifications to this address.

Now everything’s working, you’ll be able to change the site administrator email in WordPress from [email protected] (the EC2 default) to your own address.

On top of that, you may also run into an issue with the sender email address in various plugins.

Each plugin can set its own From email, and if the From Email doesn’t match the one you’ve set up in WP Mail SMTP, those emails will be sent without authentication. So your WordPress emails go to spam (or disappear).

To solve this, WP Mail SMTP lets you force the From email and the name across your entire site. This setting works with all plugins that use wp_mail() to send email.

When one or both of these settings are checked, the sender name or email set in other plugins will be ignored. So this is a quick and easy way to override any contact forms or plugins that might be sending email from unauthenticated addresses.

Force From email setting for Gmail

With some email providers, Force From Email is selected by default and grayed out, like in the screenshot above. That’s because the mailer will not allow emails to be sent from other addresses. This requirement varies by provider.

If you want to send emails from more than 1 address in WordPress, you can use multiple Gmail aliases to send emails in WordPress.

6. Control Core Update, Plugin, and Theme Notifications

Here’s a final tip if you’re using WordPress on multiple EC2 instances.

WP Mail SMTP lets you easily control automatic emails from WordPress, including plugin and core update notifications. You’ll find the settings under Email Controls.

Email Controls in WP Mail SMTP

From here, you can quickly turn off automatic update emails that you don’t want to receive.

Disable automatic plugin update emails

This setting is awesome if you have multiple testing or sandbox sites and you’d like to reduce the number of emails you get from WordPress.

Fix Your WordPress Emails Now

Next, Review Your Plugins’ Email Settings

And that’s it! Now you’ve fixed issues with AWS EC2 not sending WordPress email.

It’s worth checking your email logs in WP Mail SMTP to track down plugins that may be sending emails. To help with that, check out our email configuration guides for:

Ready to fix your emails? Get started today with the best WordPress SMTP plugin. If you don’t have the time to fix your emails, you can get full White Glove Setup assistance as an extra purchase, and there’s a 14-day money-back guarantee for all paid plans.

If this article helped you out, please follow us on Facebook and Twitter for more WordPress tips and tutorials.


  1. We are planning to deploy WP to EC2 instance.
    We are using IAM EC2 instance security profiles, which includes SES access configuration. This is a best practice for AWS.
    Does your plugin able to use it or it is mandatory to provide access key?

    1. Hi Vyacheslav,

      Currently, our plugin is not developed to comply with that feature.

      As of now, you need to follow this guide in order to configure Amazon SES mailer on your WordPress site.


  2. Hi, I’m facing a similar issue when sending emails thorugh my WordPress Website form. This is the error log when I try to send a test email.

    WordPress: 6.5.3
    WordPress MS: No
    PHP: 8.1.19
    WP Mail SMTP: 4.0.1

    Mailer: sendinblue
    Constants: No
    API Key: Yes

    Email Source: WP Mail SMTP
    Mailer: Brevo
    permission_denied: Unable to send email. Your SMTP account is not yet activated. Please contact us at [email protected] to request activation

    1. Hi Jigme,

      The error message (permission_denied: Unable to send email. Your SMTP account is not yet activated) suggests that your Brevo (formerly Sendinblue) SMTP account has not been activated yet.

      Please contact Brevo support and request them to activate your account. Once your account is activated, you should be able to use Brevo mailer on your WordPress site.

      I hope this helps. Thanks!

Add a Comment

We're glad you have chosen to leave a comment. Please keep in mind that all comments are moderated according to our privacy policy, and all links are nofollow. Do NOT use keywords in the name field. Let's have a personal and meaningful conversation.

This form is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.