White lists (Greylisting)

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Greylisting is a prevention method that allows to filter out spammers with special programs. Graylisting is active for all the messages by default (except those specified in the white list).

The receiving mail server rejects a message, informs a sender that the message cannot be delivered immediately and asks to try again later. The sending server of a legitimate user will retransmit the message. Such mail servers are put on the white list and will be delivered without any delay.

The servers that spammers use generally will not respond, because the spammer's goal is to disseminate millions of messages quickly and not have to keep track of those failed to reach their destination.

Module «Greylisting »


T-bullet.gif View white lists
T-new.png Add rule into the white list
T-edit.png Edit white list
T-delete.png Delete white list rules

View white lists

  • Sender - mail server's IP-address, network address with a mask, e-mail domain or e-mail address.

Add rule into the white list

To add a new rule to the white list, click the "New" icon and fill out the form:

Module «Greylisting »
  • Sender - enter the sender. E.g. 123.45.67.89, 123.45.67.0/24.

Edit white list

To edit a white list, locate the white list you wish to edit, click the "Edit" icon and modify the settings you want to change.

Delete white list rules

To delete a white list rule, select it from the list and click the "Delete" icon. Confirm that you want to delete the selected white list rules by clicking "OK" in the following window.