Originally Posted by Tenaka
a user tries to sign up, gives a wrong email address, phpBB2 sends out a welcome message to the wrong email address, the target mailserver rejects the wrong emailaddress so after sitting in my queue the mail gets back to the server admin account, shoul't it get back to the sender email address set in the phpBB2 settings?
It depends on what is set as Return-Path
in the email header. That's the address that receives the rejected message.