Try setting $mydomain to the domain that you want to use. Also, gotta be sure that the MX record is set up on DNS for the mail machine. Here's what I have: $mydomain=domain.com $mydestination = $myhostname, localhost.$mydomain, $mydomain relay_domains = $mydestination -- To unsubscribe: mail majordomo at ale.org with "unsubscribe ale" in message body.