This morning, postfix is refusing to send email to external address. I can send to local addresses, but nowhere external: 12/06/2009, 12:19:03: SEND - Message has not been sent. Server reply - 4.7.1 <[email protected]>: Relay access denied It was fine yesterday, and nothing has changed, except maybe an apt-get upgrade. I'm not sure the master.cf is right, though. I've had this problem with sending via port 587 and tried to work out why, but now is is not working on port 25. # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - - - - smtpd 587 inet n - n - - smtpd #submission inet n - - - - smtpd # -o smtpd_etrn_restrictions=reject #628 inet n - - - - qmqpd pickup fifo n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr fifo n - - 300 1 qmgr #qmgr fifo n - - 300 1 oqmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap smtp unix - - - - - smtp relay unix - - - - - smtp # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - - - - showq error unix - - - - - error local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil # # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # # maildrop. See the Postfix MAILDROP_README file for details. # maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/local/bin/maildrop -d ${recipient} uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -d -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} # only used by postfix-tls #tlsmgr fifo - - n 300 1 tlsmgr #smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes -o smtpd_sasl_auth_enable=yes #587 inet n - n - - smtpd -o smtpd_enforce_tls=yes -o smtpd_sasl_auth_enable=yes tlsmgr unix - - - 1000? 1 tlsmgr scache unix - - - - 1 scache discard unix - - - - - discard retry unix - - - - - error
Have you asked your access provider if they are blocking any ports? Did you cjeck if your IP got blacklisted?
It isn't a problem sending emails on: the ispconfig server's instance of postfix is refusing the connection from the email client. Some users get asked to enter their smtp authentication password, but that is rejected - even though it is correct. Mails addressed to domains hosted on the server are accepted OK. I wonder if an apt-get upgrade changed some sasl library or similar, becasue that is the only thing that changed at the time the problem started.
You should go trough the mail part of the perfect setup guide again and check if all sasl settings are correct.
I followed the perfect setup when I set the machine up about three or four years ago, and it was working fine until yesterday. I'm worried that if I mess with a setup that was working, I may break something else. Is there anything in particular that might be worth checking? [Later:] Fixed it! Although apt-get had claimed to upgrade some libraries, using "aptitude safe-upgrade" found some installed but not configured packages. It fixed them for me, and now all is working just fine. Thanks for the help.
