How to install POST SMTP on WordPress

Install POST SMTP on WordPress

In this article, we’re explaining how you can install POST SMTP on WordPress. Post SMTP is a plugin, that assists in the delivery of email generated by your WordPress site.


  • A Web Hosting Plan.
  • Installed WordpPress

Step 1: Log into Plesk

Go to your client area and log in with your credentials.

Navigate to 

My Dashboard.Click on 

Webhosting. Then choose the webhost you want to use.

If you click 

Login Details, you will see your login credentials. Click on the URL above to log in.

Insert your login credentials and click 

Log In.

Plesk login screen

Step 2: Log in to WordPress

At the left side panel click 

WordPress. Choose the WordPress you want to use and click 

Log In.

choose host

Step 3: Installing POST SMTP

At the left side panel click on 

Plugins. Then at the top click on 

Add New.

Plugin add new

At the right search bar type 

Post SMTP Mailer/Email Log. Then click on 

Install Now.

post smtp plugin

After it’s done installing, click on 

Activate to active the Plugin.


Click on 

Settings of 

Post SMTP to edit the settings.


Click on 

Show All Settings and change the default value to:


Type = SMTP

Mailer Type = PostSMTP

Transport Settings

Outgoing Mail Server Hostname = <smtp_server>

Outgoing Mail Server Port = 587

Envelope-From Email Address = <email>

Security = STARTTLS

Authentication = Login


Username = <smtp_user>

Password = <password>

Step 4: Test mail

Go back to Settings of Post SMTP and click on 

Send a Test Email.  Enter the recipient email address and click on 

Next. If everything goes as planned you should be seeing this:

smtp settings

Step 5: Set correct sender

To prevent plugins or themes from changing the name and email address go to Post SMTP and click on 

Show All Settings.  Open the tab 

Message and select 

Prevent plugins and themes from changing this:

postsmtp optional


Congratulations, you have successfully installed POST SMTP on your WordPress.

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