WordPress Email Delivery Issues: 5 Fixes That Work

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Word Press has always been known for its blog editing and management features, but it’s not without its share of problems. One of the most common issues Word Press users face is email delivery – emails sent from a Word Press blog often don’t reach their destination. This article will provide five fixes for email delivery issues on Word Press blogs. Before trying any fix, ensure your domain is registered, and your hosting account has the correct settings configured. This includes verifying that the domain name is available, checking if a default mail server is assigned, setting up MX records (if necessary), and ensuring that port 25 is open on the host machine. If all of these steps are correctly completed and still facing issues with email delivery, here are five fixes to resolve all the email-related problems.

Check your email settings on wordpress

No matter how good your wordpress blog is, email delivery can be frustratingly frustrating. That’s because spam filters and your email settings on WordPress can get in the way. To get your Email delivered the right way:

  1. Disable spam filters and add your domain to your white list.
  2. Ensure your email settings on Word Press are correct – you may need to set up IMAP on your server to send Emails.

Check your server configuration.

It is possible that your server is not configured to utilize the PHP mail() function. The good news is that you can determine if this is the source of the problem simply by checking the cause of the issue. You may use the free Check-Email plugin to perform a test on your WordPress website. 

This simple plugin checks to see if your WordPress site and server can send emails.

In your WordPress dashboard, click Tools > Check Email. Click on Send a test email to send a test to an email address. A confirmation message will appear to verify that the test email has been sent.

Check the Contact Form Plugin

There may be a problem with the plugin sending emails from your WordPress site if you’ve run the test above and your server is configured correctly. Most of the time, it is the contact form plugin causing problems. Email clients identify some contact form plugins as spoof emails because they send emails. Email clients will flag them as suspicious, similar to spam emails.

Because they’re sent from a different address than the one in the From field, contact form emails are sometimes mistaken for a spoof. As a result, if your email form is populated with the email address of the individual filling out the form, but it is coming from your WordPress site, then your email program will be dismissive of the Email and may label it as a spoof.

Check spam/anti-spam filters in your email server

One of the most common issues is spam/anti-spam filters not being correctly configured and operational. Because of WordPress’s inability to send Emails, notifications from popular plugins like WooCommerce and WPForms are often missed. Reviewing the email address your website uses to send emails is also a good idea. This will be the admin email address that you get by default. Email providers may consider it spam if it’s info@, contact@, sales@, or something similar. Make sure any emails sent to that address are diverted to your usual address, so you don’t miss any replies by changing the email address to something more professional. You may do this by setting up an email address alias.

Another reason your WordPress messages might end up spam is that your domain name hasn’t been appropriately validated for Email.

Check the SMTP settings of your email server.

SMTP is The Simple Mail Transfer Protocol. It transfers emails between networks. As a result, your server will not be able to send emails if it isn’t set up correctly. Make sure that the SMTP settings of your email server are correct. This includes setting up the MX records for your domain name and ensuring that your firewall isn’t blocking SMTP traffic to or from your email server. If that doesn’t work, test sending emails by creating a dummy account and configuring it to use an external sender address. You can also post a message on the support forum for wordpress and let them know about your issue.

How to Fix the SMTP Error Step By Step?

Suddenly not being able to send emails can be a bummer, and it may stem from a variety of factors. The default port of 25 should allow you to send email if your internet service provider is configured that way, however you may find yourself having problems from time to time. Here is one of the common SMTP Error messages in wordpress

SMTP Error: “The following recipients failed. Your domain is not allowed in header Form”


So, here is why you are seeing this message. This SMTP error implies that at the same time, two email servers are in use. When the admin is using WordPress emails along with other clients’ Gmail accounts, some contradictions may result in failed email delivery. In this scenario, emails sent from WordPress will be blocked by Microsoft or gamil servers and this has started happening more frequently on the lastest release by Gmail and Microsoft. Emails that were previously functioning might also be blocked as a result of this. If you don’t want to pay for more emails from Microsoft or Gmail, here’s how to fix it:

Step 1:

Login to your hosting account and go to C-Panel


Step 2:

 There you will see the option of adding the subdomain


Step 3:

Create any alias like mail@alias.yourdomain.com

Step 4:

 Look for the created subdomain in the list. In our case its mail.inceptial.tech 


Once the subdomain has been created, go to the email routing tab


In the Email routing Dashboard we will select the newly cerated the subdomain from the dropdown and in the configure email routing we will click local mail exchanger.


Step 5:

go back to the Cpanel and click on the Email Accounts main dashboard.


Step 6: 

Create a new email account for that click on the create button


Step 7:

Keep in mind while creating the new account you have to select the subdomain for that account.


Step 8:

Enter the mail address and create the password.


Step 9:

The Email has been created. Now you have to click on the Connect devices


Step 10:

After clicking on connected devices, you’ll be brought to a page with email address information. Congratulations if you made it this far. Remember that it seems simple at first, but you may make mistakes. So if you got stuck somewhere during the process, contact inceptial.tech for help. Without any difficulty, we may resolve this issue in less than two hours.


Step 11:

Now click on the add new plugin button in your wordpress admin dashboard. Enter “simple WP SMTP” in the search field. To set up outgoing emails, follow the steps below.



 Enter the information in the fields of ‘from email address’ and ‘from name’ that you have generated in the Step 8


Fill the remaining fields as below


Step 13:

Once you have entered all the required information click save and go to the test email tab to test your settings. You can use any other email other than your domain email to test your settings.


Frequently Asked Questions

What are some common causes of email delivery failures on WordPress sites?

There are many reasons email delivery can fail on WordPress sites. The most common causes are issues with the hosting provider’s SMTP server, improper WordPress site settings, and domain name problems.

Should I use a hosting company to manage my WordPress site?

There is no one-size-fits-all answer to this question, as the level of hosting and management required for a WordPress site will vary depending on the size, features, and optimization. However, some popular hosting companies that offer WordPress hosting include WP Engine, HostGator, and BlueHost.

How can I fix DNS problems that are causing email delivery problems?

One common cause of email delivery problems on WordPress sites is incorrect DNS settings. If you’re experiencing issues with your emails being delivered to the correct address, it may help to check your DNS settings and ensure they are configured correctly. You can also try using a different email provider if your domain name isn’t working correctly.


SMTP is ready on your website if the test email is delivered successfully. Emails with HTML content are more likely to be filtered and sent to the spam folder than plain text emails. Make sure your DKIM and SPF records are correct. These techniques can help boost email delivery by ensuring email authenticity.

When trying to send Emails through WordPress, a frequent error message reads, “WordPress Not Sending Email.” So, if you’re curious about what might be the possible causes and solutions for repairing this as soon as feasible, try the fixes mentioned in the above article. With some troubleshooting, you can resolve the problem with email delivery successfully.