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 activate and Manage Auto-SSL Certificate in WHM/cPanel?

cPanel provides free SSL Certificate to the WHM/cPanel users. Since it is an automated process by...

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

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

How to install memcache on WHM/cPanel server (CentOS)?

Following article will assist you to install Memcache in cPanel/WHM server. Login into your WHM....

How to Create Reseller Account in WHM?

WHM allows you to create reseller accounts under your cPanel Linux VPS. To create reseller...

Fix - Unknown address error 550-Verification failed in exim

One of our Linux VPS customers faced the problem wherein the customer was unable to receive...