Ban Mail From
This option allows you to reject any incoming mail from specific addresses. For example, if a user is a troublemaker, then you can have Lyris List Manager automatically reject any
postings from this person.
Note: This mail from: value applies to the SMTP transaction MAIL FROM: <> value. In email messages, this is usually, but not necessarily the same as the From: in the mail you receive. Lyris List
Manager displays the MAIL FROM: <> value in any message it receives in the Return-Path: header line. Most other mail servers follow this convention as well.
You can use this feature if a user has threatened to mail bomb you and you want to protect your server from them. Mail bombing is the tactic of sending hundreds of messages to someone, in the hopes
of overwhelming them, or their server, and wasting their time. If you ban someone's email with this technique, Lyris List Manager will not even accept their messages over SMTP, and the amount of
processing it does for each message is extremely small: thus defusing the power of their mail bomb.
You can specify as many email addresses as you like, by putting each address on a separate line.