SMTP error while using PHPMailer with GMail Authentication

Problem Statement


One of our Linux VPS customer was unable to send emails through PHPMailer script with Gmail's authentication.

Solution


After some investigation, we could fix the issue taking following steps.
  1. Login to WHM.
  2. Navigate to ConfigServer Security & Firewall.
  3. Click on Firewall Configuration.

    Firewall Configuration


  4. Locate the option SMTP_Block and set to '0'.

    Change SMTP Block Option

  5. Click on Change button.

  • 0 Users Found This Useful

Was this answer helpful?

Related Articles

How to install ConfigServer Explorer to cPanel/WHM?

Undoubtedly, WHM has been the most comprehensive control panel of all time for Linux based...

How to Allow Remote Connection to MySQL Server in cPanel/WHM Server?

To prevent potential security risks to MySQL server, by default remote MySQL connections are...

How to Install ClamAV plugin from WHM?

ClamAV is a one of the most popular open source antivirus plugin available for cPanel servers....

How to redirect cPanel/Webmail to encrypted connection [SSL]?

When you want to transmit sensitive information over the Internet, you should use HTTPS instead...

Fix :: Unable to add domain in cPanel that points to some other server

Problem Statement Unable to add domain (which is not pointing to cPanel server.) in cPanel...