WP Mail SMTP Review

WP Mail SMTP Review: The #1 WordPress SMTP Mail Plugin?

Looking for a WP Mail SMTP review to make up your mind about the plugin?

You’re in the right place, for sure.

WP Mail SMTP can help you cut down on spam emails from your WordPress site.

But is it really the #1 WordPress SMTP plugin? Why would you need an SMTP plugin in the first place? WordPress has its own PHP mailer. Why invest in buying an SMTP plugin that also helps you send emails?

In this article, we’re going to answer all these questions and more.

Most importantly, we’re going to put WP Mail SMTP to the test and find out if it’s really worth buying.

Let’s dive right in.

What Is WP Mail SMTP?


WP Mail SMTP is a plugin that helps you improve your WordPress email deliverability. The plugin bypasses the default wp_mail() function and forces your site to use SMTP settings instead.

In simple terms: You can use any email deliverability service provider including Gmail to send emails. But more on that later.

Using WP Mail SMTP removes some of the biggest email deliverability issues in WordPress. The default method for WordPress sites to send email can get flagged as spam. And that’s if they get delivered in the first place.

WP Mail SMTP can also come in handy when:

  • your hosting doesn’t support the mail() function and WordPress can’t send email
  • your server isn’t configured properly to deliver mail from your WordPress site
  • you want to send your business emails via Gmail or Google Apps
  • enquiry messages from your WordPress forms never get sent to your inbox

And here’s the thing: Nearly ALL WordPress websites suffer from the same problem.

So, even if you’re running a personal blog and collecting emails to send out a newsletter or if you’re a plumber who accepts bookings on a tiny business site, you’re going to have the exact same problem with emails on WordPress.

If you’ve been suffering from email deliverability issues from WordPress or WooCommerce already and you know what we’re talking about, you should definitely get started with WP Mail SMTP today.

Don’t even think about it. Just go get the plugin right now.

But if you’d like to understand the problem more deeply and get a clearer picture of what WP Mail SMTP has to offer, keep reading.

Why Use WP Mail SMTP?

Most WordPress hosting providers aren’t really configured properly to send emails. As a result, you may not even get notified of contact form submissions. Using WP Mail SMTP allows you to bypass the default wp_mail() function and forces your site to use SMTP settings instead.

This way, even if your web host isn’t properly configured to send emails, you will still be able to send automated emails and email notifications from your site.

Don’t even get us started on what a nightmare this is for WooCommerce stores!

WordPress handles user registration emails using built-in PHP code called the wp_mail() function:

WordPress PHP mail

This is a big problem because not all WordPress hosts offer servers configured properly to use PHP mail.

And even if the servers are configured properly, Gmail and other email service providers use strict spam filters. These spam filters try to authenticate that your email is coming from your business and not a fraudulent third party. That’s where most of your emails get blocked or flagged as spam.

You can work your way around this problem using WP Mail SMTP.

How to Set Up WP Mail SMTP on Your Site

In this section, we’re going to show you how to use an SMTP service to ensure your email delivery. We’ll show you what SMTP service we use too, but no matter which SMTP service you choose, you need to install the WP Mail SMTP plugin.

So, go ahead and install and activate the plugin. If you’re not sure how to do that, this tutorial will show you how to install a WordPress plugin.

Step #1: Configure the Plugin

Once you’re done installing the plugin, head over to your WordPress dashboard and click on WP Mail SMTP to configure the plugin:

WP Mail SMTP setup

After you enter your license key, start filling out the Mail section:

WP Mail SMTP license key

NOTE: Make sure that you enter the same email address as the one you’ll be using for your SMTP service. If there are conflicting emails, you’ll keep getting errors from the SMTP service dashboard.

The best part about this plugin is that even if your other WordPress plugins such as WP Forms use other email addresses, WP Mail SMTP can force them to use this email address.

That’s all for now. 

Next, you’ll need to choose an SMTP mailing service for your site. We recommend using SMTP.com. But you can find a lot of different services in there.

To finish setting up the WP Mail SMTP plugin, you’ll have to create an account with SMTP.com next. It’s a very popular SMTP service that allows you to send bulk emails with high delivery rates.

Step #2: Update the WP Mail SMTP Plugin

Go to the WP Mail SMTP plugin and click on WP Mail SMTP » Settings.

Then, under Mailer, select a service provider. You can choose between a whole host of options:

WP Mail SMTP connections

We recommend using SMTP.com:

Connect to SMTP

Step #3: Create an SMTP Account

Go ahead and create a new account:

SMTP free trial

Once you’ve signed up, you’ll be asked to click on an activation link via email and confirm your identity. So, keep an eye out for multiple emails.

And then, go back to the WP Mail SMTP plugin to connect your SMTP account to the plugin.

The popup will ask for an API key which you can get from your SMTP.com dashboard. Click on the Get API Key link (click on on this link to get there directly):


You should see a table on this page. Copy the API Key in the Key column:


Then paste this API key in WP Mail SMTP:

Paste SMTP API Key in WP Mail SMTP

Finally, in the Sender Name field, click on the Get Sender Name link:

Get Sender Name

Copy the name in the Name column:

Paste Sender Name

And paste it in WP Mail SMTP.

Then hit Save Settings:

Save Settings

Step #4: Add the SPF Record to Your DNS

After the authentication, your most important task will begin: Adding the SPF record to your DNS records. If things got way too techy for you way too fast, don’t worry. It’s a simple process.

Sender Policy Framework (SPF) is how SMTP.com authenticates your emails. Including this step ensures that your emails won’t get stranded in the Spam inbox.

Go to the navigation menu of your SMTP.com account and click on Account » My Settings:

SMTP Account Settings

Head to General Settings and look under SPF Record:

SMTP SPF settings

You’ll need to add this SPF record to the DNS settings for your site. If you don’t know how to do this, check out this article on how to add SPF records.

NOTE: In the DNS settings, you’ll see a field called TTL (Time To Live). The default value is usually 1 hour. If you can change this record, we recommend changing it to 1 day or 86400 seconds. This will allow the server to cache this information for a full day.

Step #5: Validate Your SPF Records

If you’ve added the SPF record, then it’s time to validate that the changes were updated. It may take up to 48 hours for the changes to reflect. So, validating the results before moving on to the next step is a good idea.

Click on this link and head to the section that says SMTP.com SPF Record Domain Check.

In the Domain field, submit your website’s URL and click on Validate:

Validate SPF record

If all went well, you should see this Pass message:

SPF record pass message

And you’re done!

Step #6: Send a Test Email

You’re all set. This is the last step where you verify that everything’s working as it should be. Thankfully, WP Mail SMTP has a built-in ‘Test Email’ function.

Head over to WP Mail SMTP and click on the Email Test tab:

Create Test Email

Enter any email address that you have access to and send a test email. If all went well, you should see this success message:

Send Test Email

Now, check your inbox and confirm that you received the email in your Primary inbox. We’re very confident that you’ll find it there.

Finally, all you have to do is verify that the email went through your SMTP.com account. Click on this link to go to the Deliverability Settings page. If you see the ‘Pass’ notification like this one, you did a great job:

Check Deliverability Settings

If you don’t see a ‘Pass’ status, then you did an oopsie. Go back to the previous section and go through steps 1-4 and make sure that you didn’t miss anything.


The final consideration here is pricing.

It’s pretty clear that WP Mail SMTP is geared more towards solving a common issue without any coding.


As you go for the higher packages, you get much more value from WP Mail SMTP.

WP Mail SMTP comes under 4 different pricing slabs:

  • Pro Plan: Available at $49/year. It offers a year of free downloads, support and updates.
  • Elite Plan: Available at $99/year. This plan comes with a free White Glove setup and priority support.
  • Developer Plan: Available at $199/year. You get a year of free downloads, support and updates. You can add upto 20 different websites.
  • Agency Plan: Available at $399/year. This license includes everything in the Developer Plan and you can add upto 100 websites.

Which one’s most suited for your needs? Drop a comment and let us know.

Wrapping Up

That’s all for this one, folks!

Our verdict? WP Mail SMTP is definitely a good investment for growing businesses.

As we said, any WordPress site could potentially suffer from the exact same problem with emails. Even if you’re running a really small business, you could end up running your revenue to the ground because your site didn’t let you know when a customer made an inquiry.

Make no mistake, the level of ease with which you can resolve email deliverability issues with WP Mail SMTP is unrivaled. And if you consider the pricing, it’s even more appealing.

In our view, WP Mail SMTP is definitely the best SMTP plugin for WordPress. And if you’re ready to solve the issue, you should get the plugin right now.

If you’re not ready to solve such problems yet, you should focus more on marketing. A nice way to get more traffic, engagement, and conversions would be to use push notifications for your site. We recommend using PushEngage to create your push notification campaigns.

PushEngage is the #1 push notification software in the world. So, if you haven’t already, get started with PushEngage today!

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