Limit Outgoing Emails and Enable SMTP Authentication

• 21 October 2021
• in: Email

The issues of spamming has to face by everyone who own server and that result server IP being blacklisted. To overcome this situation, you can go for the option to limit outgoing emails from the server.

Login to your server’s WHM as root. Access Main >> Server Configuration >> Tweak Settings. Search for “Max hourly emails per domain“. it’s the most range of emails every domain can send out per hour. By default it’s set to unlimited that could be a high risk. You’ll click the Radio Button slightly below it, limit it to the one you wish. Click on Save & you’re done.

The mails being sent will get limited from [email protected]. But, there are scripts that send emails using [email protected] OR [email protected]. This can be possible using scripts in php, perl etc. To beat this, you would required to enable SMTP Authentication. SMTP AUTH because the name says, could be a method to send emails using authentication mechanism. Email won’t be sent using a script if it’s not authenticated with correct Username & Password.

To enable it, you would need to add php mail to disable function in php.ini. Doing this, each user who uses a contact form OR script to send emails, can enable SMTP AUTH within the scripts. Contact any of our support representative & they’re going to assist you with enabling it.