> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mainwp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Post SMTP

> The MainWP Post SMTP Extension allows centralized management of SMTP settings for WordPress emails across all your Child Sites. Configure email delivery settings from one location in your MainWP Dashboard.

## What You'll Learn

* Installing the Post SMTP extension and plugin
* Configuring SMTP settings across child sites
* Enabling the extension for multiple sites
* Customizing email sender settings per site

***

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<iframe className="w-full aspect-video rounded-xl" src="https://www.youtube.com/embed/qaayYUJzW9c" title="MainWP Post SMTP Extension - Video Tutorial" frameBorder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowFullScreen />

The MainWP Post SMTP Extension allows centralized management of SMTP settings for WordPress emails across all your sites from the MainWP dashboard. It supports setting up SMTP with a single click, monitoring email delivery status, and receiving notifications for email failures, aimed at simplifying email management and improving deliverability.

## How to Set Up MainWP Post SMTP Extension

### Prerequisites

\- Post SMTP Plugin: Installed and configured on the MainWP Dashboard site. - MainWP Dashboard: With the MainWP Child plugin installed on all child sites.

### Installation Steps

1\. Verify Post SMTP Configuration on the MainWP Dashboard site: Navigate to the Post SMTP dashboard on your parent site to ensure it's correctly configured. A message stating "**Postman is configured**" should be visible if set up correctly. <img src="https://mintcdn.com/mainwp/IR8CPI-HSZJmZwTU/images/miscellaneous/add-ons-development-a6545a.png?fit=max&auto=format&n=IR8CPI-HSZJmZwTU&q=85&s=d204e5aea7cc4b95cc3d969c27d33455" alt="Post SMTP dashboard showing Postman is configured status" width="1558" height="409" data-path="images/miscellaneous/add-ons-development-a6545a.png" /> 2. Install MainWP Post SMTP Extension:

* On your MainWP Dashboard site, go to **WP Admin > Plugins > Add New**.
* Search for **Post SMTP MainWP**.
* Install and activate the **MainWP Post SMTP Extension**.

3\. Install Post SMTP Plugin on Child Sites: <img src="https://mintcdn.com/mainwp/IR8CPI-HSZJmZwTU/images/miscellaneous/add-ons-development-c89eb8.png?fit=max&auto=format&n=IR8CPI-HSZJmZwTU&q=85&s=1b1e769d723be5f1c3d9a3c66e1e1de4" alt="MainWP Install Plugins page showing Post SMTP plugin" width="1200" height="584" data-path="images/miscellaneous/add-ons-development-c89eb8.png" />

* Navigate to **MainWP Dashboard > Sites > Manage Plugins** and select Install Plugins.
* Search for **Post SMTP** and select Install Plugin.
* Choose the child sites for the installation. Ensure **Activate After Installation** and **Overwrite Existing Version** options are selected.
* Click **Complete Installation**.
* Synchronize your sites.

4\. Enable Post SMTP Extension for Child Sites: <img src="https://mintcdn.com/mainwp/IR8CPI-HSZJmZwTU/images/miscellaneous/add-ons-development-aa6773.png?fit=max&auto=format&n=IR8CPI-HSZJmZwTU&q=85&s=1a89a5abfd28ff395f46a545f31aeedc" alt="MainWP Post SMTP Extension settings page with site enablement options" width="1206" height="588" data-path="images/miscellaneous/add-ons-development-aa6773.png" />

* Navigate to **MainWP Dashboard > Add-ons** and ensure the Post SMTP extension is enabled.
* Open **MainWP Dashboard > Add-ons > MainWP Post SMTP Extension** page
* Click **Enable all sites** button or enable Child Sites individually
  * Optionally you can set custom Email Address, Name and Reply-To values for each child sites
* Click **Save**.

***

## Related Resources

* [Development Add-ons](/add-ons/development) - Browse all development tools
* [Change Email From Address](/customization/how-to-change-the-from-address-for-mainwp-emails) - Email customization
* [Dashboard Not Sending Emails](/troubleshooting/my-mainwp-dashboard-not-sending-emails) - Troubleshooting email issues