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Configure Greylisting

Log in to your cPanel>> Mail section >>  Email Greylisting

Is a method of defending e-mail users against spam. An email program using greylisting in configuring greylisting will “temporarily reject” any email from a sender that it does not recognize.

When enabled, this feature can help protect you against unwanted email or spam

The mail server will temporarily reject any email from a sender that the server does not recognize.

If the email is legitimate, the originating server tries to send it again after a delay.

After sufficient time passes, the server accepts the email.

Greylisting identifies incoming emails by triplets. A triplet is a collection of three pieces of data: the IP address, the sender’s address, and the recipient’s address.

By deferring unknown triplets, Greylisting filters spam and allows legitimate emails a second chance to pass through.


Note: Before you can access the Greylisting Configuration Settings, Trusted Hosts, and Reports sections of the interface, you must click on/off to enable the Greylisting feature.

Enable Greylisting

If Greylisting is disabled on the server, this interface only displays an On/Off toggle. Click the toggle to configure greylisting

Configuration Settings

The Configuration Settings tab allows you to specify the Greylisting parameters.

To use Greylisting, perform the following steps:

  • Click the Configuration Settings tab
  • Enter the desired values for each setting, or keep the default values
  • Click Save

To learn more about the different settings, see the cPanel setting page