Hi list I've configured an in-house email server as per: http://www.howtoforge.com/linux_postfix_virtual_hosting_2 where: the TLA FQUN == fully qualified user name POP3 successfully auth's by looking up /etc/dovecot/passwd as per line on webpage: "25 auth_passdb = passwd-file /etc/dovecot/passwd" which is in the form of: [FQUN]:[shadow_password] Problem is, Postfix by FC default standard doesn't point to this auth mechanism to relay outgoing email. I've Googled, and there seems to be a myriad ways of aligning these auth mechanisms. If someone could please advise a most-preferred way :-) Thanks in advance, Stu@ -- Then you will know the truth, and the truth will set you free.