Hi All, I have just setup an ISPConfig server, and everything is working fine except inbound email. I used the Debian Perfect setup (http://www.projektfarm.com/en/support/howto/perfect_setup_debian_sarge/index.html ) , then a standard ISPConfig install. The problem is that emails sent from outside to usernames in a hosted domain (in my case "thecubby.com.au"), are relayed back to our other mailserver for no apparent reason. Eg: mail is sent from an external system to "[email protected]", the email is forwarded to the ISPConfig server "hosting01" by our other mailserver "mail.mytelecom.com.au", all looking good. Then, the recipient is expanded to be the ISPConfig created username "myweb3_gallen" (correct I think), but, the domain is changed to "mail.mytelecom.net.au" (this seems wrong), such that the final destination is "[email protected]", which is then relayed back to our other email server and is later rejected, copy of log file from ISPConfig server below: Nov 29 19:08:53 hosting01 postfix/smtpd[2249]: connect from mail.mytelecom.com.au[203.153.192.6] Nov 29 19:08:53 hosting01 postfix/smtpd[2249]: 469203FA402: client=mail.mytelecom.com.au[203.153.192.6] Nov 29 19:08:53 hosting01 postfix/cleanup[2252]: 469203FA402: message-id=<008b01c7138d$aafd1e20$33050a0a@gallent17gp> Nov 29 19:08:53 hosting01 postfix/qmgr[2242]: 469203FA402: from=<[email protected]>, size=1690, nrcpt=1 (queue active) Nov 29 19:08:53 hosting01 postfix/smtpd[2249]: disconnect from mail.mytelecom.com.au[203.153.192.6] Nov 29 19:08:53 hosting01 postfix/smtp[2254]: 469203FA402: to=<[email protected]>, orig_to=<[email protected]>, relay=mail.mytelecom.net.au[203.153.192.6], delay=0, status=sent (250 2.0.0 Message received OK) Nov 29 19:08:53 hosting01 postfix/qmgr[2242]: 469203FA402: removed Can anyone give me some pointers as to why this is happening and how to solve it. I did accidentally enter these two commands during the perfect setup: postconf -e 'home_mailbox = Maildir/' postconf -e 'mailbox_command =' But removed them from /etc/postfix/main.cf later and restarted postfix (could this be an issue)? Regards, Graeme.