Post SMTP and MainWP

As an owner of multiple WordPress sites, you know how challenging it can be to keep track of all the emails sent and received across all the sites.

According to Duplicator Pro, an average WordPress site has between 20 to 30 plugins installed at one moment, making email tracking and managing email SMTP configurations for multiple sites extremely time-consuming.

But there is some GOOD NEWS! We are thrilled to announce our partnership with MainWP. Together, we have created the MainWP Post SMTP Extension, a powerful tool that lets you easily configure and manage Post SMTP settings across all your child sites from your MainWP dashboard.

So, let’s explore how to install and configure the MainWP Post SMTP Extension to simplify multisite WordPress email management.

What is Post SMTP, and Why Should You Use MainWP Post SMTP Extension?

Post SMTP Pugin is a next-generation SMTP WordPress plugin that enables you to send emails reliably and securely from your WordPress site. It supports various email services, such as Gmail, Microsoft 365 SMTP, Mailgun, Brevo (formerly Sendinblue), Amazon SES, SendGrid, and more. 

On top of that, you can monitor and troubleshoot your email delivery with detailed logs and reports.

Now, you must be wondering why you need MainWP Post SMTP Extension. To answer this, let’s understand what it is and how it is highly beneficial to MainWP Dashboard users.

MainWP Post SMTP Extension – A Brief Introduction

The MainWP Post SMTP Extension is an easy-to-use and powerful add-on exclusively designed for MainWP users to streamline email management across all their WordPress sites. 

This extension offers a comprehensive and all-encompassing solution, from configuring SMTP settings to monitoring email logs, receiving instant email failure alerts, diagnosing email errors, and much more.

Using MainWP Post SMTP Extension

In short, this groundbreaking extension simplifies and revolutionizes multisite WordPress email management, making it easier than ever!

Benefits of Using MainWP Post SMTP Extension

By using MainWP Post SMTP Extension, you can enjoy the following benefits:

  • Save Time and Effort: With one-stop SMTP configuration across all sites, you don’t have to install and configure Post SMTP separately on each child site. All you need is to do it once on your MainWP dashboard and apply the settings to all or selected child sites with a single click.
  • Maintain Consistency and Quality: You can ensure that all your child sites use the same email service and settings so you can avoid email delivery issues and maintain a consistent and professional brand image.
  • Manage Email Delivery Centrally: You can easily monitor the performance and status of your email delivery across all your child sites by viewing and managing all the email logs and reports from your MainWP dashboard.
  • Receive Instant Email Failure Alerts: When configuring Post SMTP on the main (parent) site, you can choose from various options, including email alerts, Slack alerts, or SMS notifications via Twilio. As a bonus, enjoy a free Chrome Extension for convenient email failure notifications directly in your browser.
  • Improve Security and Compliance: With Post SMTP’s built-in encryption and Open Authentication (OAuth 3.0) features, you get adequate protection for your SMTP Credentials email data while complying with the latest email standards and regulations.
  • Get Post SMTP Mobile App – 100% FREE: This app lets you track all your WordPress emails anywhere, anytime. You can also check email statuses, receive instant failure notifications, resend failed emails with a single click, and even diagnose failures with detailed error messages. Moreover, the app provides direct access to Post SMTP support in case of any difficulty.

In addition to all the benefits mentioned above, you can access the documentation and support resources from both the MainWP and Post SMTP teams and receive regular updates and improvements for the extension and the plugin.

What MainWP Leadership Have to Say About Our Partnership

“The seamless integration of the Post SMTP Extension within MainWP offers our customers a robust solution for managing email deliverability across their WordPress sites. By streamlining the email configuration process and centralizing management, users gain the advantage of ensuring consistent, secure email communications directly from their MainWP dashboard. This enhancement empowers our users with detailed insights into their email performance, thanks to comprehensive logs and the convenience of a dedicated Post SMTP mobile app. For MainWP users, this integration simplifies complex email management tasks, providing a more efficient, reliable way to handle their WordPress site communications.”

 – Dennis Dornon, Co-Founder of MainWP


“With MainWP’s integration of the Post SMTP Extension, we’re bringing a sophisticated level of email management directly to our users’ fingertips. This isn’t just about making email configurations easier; it’s about providing a fortress of reliability and security for all site-related communications. The beauty lies in the simplicity of having a one-stop dashboard for both site and email management, enriched with the Post SMTP’s capabilities. Our users can now navigate email settings with unprecedented ease, monitor delivery successes, and even tackle issues on-the-go with the mobile app. This integration marks a significant step forward in how our users can harness the full potential of their WordPress sites, focusing on what truly matters – their content and their audience.”

– Marc Benzakein, Marketing Manager, MainWP


“At MainWP, we’re constantly exploring ways to enhance user experience and efficiency, and the integration with Post SMTP is a testament to this commitment. For our users, it translates into a streamlined, robust platform for email management that complements our core site management tools. This integration not only simplifies the setup and maintenance of email services across WordPress sites but also brings a new level of insight and control. Users benefit from direct access to email performance metrics and the ability to address deliverability issues promptly, all within the MainWP environment. It’s about empowering our users with the tools they need to manage their digital presence effectively and confidently.”

– Bogan, Lead Developer, MainWP

Requirements for Setting Up MainWP Post SMTP Extension

  • MainWP Dashboard installed on parent site
  • MainWP Child is installed on all child sites 
  • WordPress version 4.7 or higher

3 Easy Steps to Configure MainWP Post SMTP Extension

Once you have completed all the requirements, you can follow these three easy steps to configure the MainWP Post SMTP Extension:

Step #1: Install Post SMTP on Parent and Child sites

  • Login to your WordPress parent site.
  • Navigate to Plugins → Add New Plugin.
  • Search for “Post SMTP” and look for “ POST SMTP – The #1 WordPress SMTP Plugin with Advanced Email…”
Install Post SMTP
  • Click on Install Now, and then upon installation, click on Activate.
  • Upon activation, you’ll see the 3-step setup wizard, as shown below.
setup wizard
  • Finally, configure Post SMTP with your preferred settings.

NOTE: If you need any help regarding Post SMTP configuration, you can reach out to us for expert assistance, or you can check our detailed guide on how to configure SMTP for WordPress to send emails

Now, to install Post SMTP on child sites, follow the steps below:

  • Open your MainWP Dashboard and navigate to the Sites → Plugins → Install Plugins.
Post SMTP on child sites
  • Type “Post SMTP” in the search bar and turn on the toggle button next to Install Plugin.
Type Post SMTP
  • Next, select all or individual child sites you want to set up Post SMTP.
successful installation
  • Finally, click the “Complete Installation” button and confirm the success message upon successful installation.

Now, move on to the following step.

Step #2: Install MainWP Post SMTP Extension on the Parent Site

  • Login to your WordPress dashboard for the parent site.
  • Go to Plugins → Add New Plugin
  • Search for MainWP Post SMTP Extension
  • Click on Install Now and then Activate.
MainWP Post SMTP Extension

That’s it. To access MainWP Post SMTP Extension 

  • Go to the MainWP dashboard from the left-hand side menu.
  • Click on Manage Extensions, and you’ll see MainWP Post SMTP Extension here.
connect the extension with all the child sites

From now on, you only need to connect the extension with all the child sites, which we will explain in the final step below.

Step #3: Enable Post SMTP Configuration for All Child Sites

As in step #2, we’ve shown how to access the MainWP Post SMTP Extension inside the MainWP Dashboard.

  • Select MainWP Post SMTP Extension from the side menu or the Extension dashboard.
Enable Post SMTP Configuration
  • Click on the Enable All Sites button and then Save.
Enable All Sites button

NOTE: If you enable Post SMTP configuration for any specific child site, then instead of clicking “Enable All Sites,” check mark that specific child site underneath it and hit the Save button.

Congratulations! Now, you’ve successfully configured the MainWP Post SMTP extension.

Try MainWP Post SMTP Extension TODAY! – 100% FREE

The easiest way to manage WordPress emails across all sites

As you can see, the MainWP Post SMTP Extension is an easy and effective way to manage your WordPress emails across all your sites. It saves you time, improves your WordPress email delivery, and simplifies your multistore WordPress email management.

The best part is that the MainWP Post SMTP Extension is 100% free to use. You can download it from the WordPress plugin repository or from the MainWP website and start using it right away.

If you need any help with the installation or configuration of the extension, you can check out the documentation or reach out to the Post SMTP support team. We are always ready to assist you with any WordPress email-bound issue.

So, don’t miss this opportunity to take your WordPress email management to the next level. Try the MainWP Post SMTP Extension today and see the difference for yourself!