Good Day A few years ago i setup my own mail server using the following link. http://www.howtoforge.com/iredmail-...ecot-clamav-spamassassin-amavisd-debian-5.0.1 Yesterday some virtual user’s complaint that when they send emails then the other person will see the senders email address is different For example if one person sends email using [email protected] and will show [email protected] at the receivers end. I have tested it and it only happens when email are send outbound. Is there any workaround or any place where I can go and check it he settings are correct? All my outbound mail is being relayed to outbound server. If I skip my server and send directly to that server then emails are sending correctly Thank you PS: Pardon my poor English.