Disable From: Checking

This allows you to disable the built-in phrases ListManager normally uses when receiving mail. ListManager uses some regular expressions to block common types of spam, and disabling the From: checking will bypass using those regular expressions on the From: field.

For example, a message from postmaster@somedomain would normally be blocked, because postmaster@ is an automated address that usually sends delivery errors. However, a real person might use their postmaster@ account to belong a ListManager list and you might want to allow this.