first of all, I'm just a php developer but I have to manage servers as part of the job .. so please bear with my limited knowledge of unix commands/config I have two dedicated servers to manage both have been running fine for years couple of days ago one of them started to show a weird problem with email lets call them goodserver ,illserver goodserver has many domains lets pick gsdomain1,gsdomain2 for example illserver has two domains isdomain1 , isdomain2 illserver has the following weird behaviour I send an email from me@gsdomain1 to anymail@isdomain1 the message doesn't make it and I get the following reply Code: This is the mail system at host localhost.gsdomain1 I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system <anymail@isdomain1>: user unknown. Command output: Invalid user specified. Reporting-MTA: dns; localhost.gsdomain1 X-Postfix-Queue-ID: A1F653B0AE X-Postfix-Sender: rfc822; me@gsdomain1 Arrival-Date: Tue, 18 May 2010 15:10:07 +0100 (BST) Final-Recipient: rfc822; anymail@isdomain1 Original-Recipient: rfc822;anymail@isdomain1 Action: failed Status: 5.1.1 Diagnostic-Code: x-unix; Invalid user specified. however, goodserver sends/receives email fine to/from any other server illserver sends/receives email fine to/from any other server isdomain1 sends email to gsdomain1 fine isdomain2 sends/receives email to/from gsdomain1 fine so the problem is only when I send email from goodserver(gsdomain1/gsdomain2) to isdomain1 what can I do about that?
tail -f /var/log/mail.log on the ill server. Then send another mail from GS to IS .. check check what appears in the mail.log
thanks Mark for your reply Here's the output from first tail Code: May 19 15:51:34 localhost postfix/pipe[11425]: 657A34A592: to=<ayman@isdomain1>, relay=maildrop, delay=0, status=sent (isdomain1) May 19 15:51:34 localhost postfix/pickup[11537]: 7AD0D4A64C: uid=1003 from=<smh> May 19 15:51:34 localhost postfix/cleanup[11422]: 7AD0D4A64C: message-id=<[email protected]> May 19 15:51:34 localhost postfix/local[11556]: 6989A4A582: to=<[email protected]>, relay=local, delay=0, status=bounced (cannot access mailbox /var/mail/smh for user smh. error writing message: File too large) May 19 15:51:34 localhost postfix/qmgr[31910]: 7AD0D4A64C: from=<[email protected]>, size=75509, nrcpt=1 (queue active) May 19 15:51:34 localhost postfix/pipe[11548]: 657A34A592: to=<henry@isdomain1>, relay=maildrop, delay=0, status=sent (isdomain1) May 19 15:51:34 localhost postfix/smtpd[11464]: disconnect from unknown[213.152.245.76] May 19 15:51:36 localhost postfix/smtp[11559]: 7AD0D4A64C: to=<[email protected]>, relay=gmail-smtp-in.l.google.com[209.85.135.27], delay=2, status=sent (250 2.0.0 OK 1274280696 w5si34234364mue.54) May 19 15:51:36 localhost postfix/smtp[11277]: 657A34A592: to=<[email protected]>, orig_to=<uthra@isdomain1>, relay=gmail-smtp-in.l.google.com[209.85.135.27], delay=2, status=sent (250 2.0.0 OK 1274280696 u26si6972846mug.55) May 19 15:51:37 localhost postfix/smtp[11274]: 875314A552: to=<[email protected]>, relay=mailx.hoster.ru[195.128.50.36], delay=259501, status=deferred (conversation with mailx.hoster.ru[195.128.50.36] timed out while sending HELO) May 19 15:52:16 localhost pop3d: Connection, ip=[::ffff:188.221.171.76] May 19 15:52:16 localhost pop3d: LOGIN, user=s.sandhu@isdomain1, ip=[::ffff:188.221.171.76] May 19 15:52:16 localhost pop3d: LOGOUT, user=s.sandhu@isdomain1, ip=[::ffff:188.221.171.76], top=0, retr=0 sent an email then another tail Code: May 19 15:56:15 localhost postfix/cleanup[11748]: DBA7B4A64C: message-id=<[email protected]> May 19 15:56:15 localhost postfix/qmgr[31910]: DBA7B4A64C: from=<>, size=5711, nrcpt=1 (queue active) May 19 15:56:16 localhost postfix/pipe[11791]: 5F1EA4A60A: to=<fik.majdoub@isdomain1>, relay=maildrop, delay=3, status=bounced (user unknown. Command output: Invalid user specified. ) May 19 15:56:16 localhost postfix/cleanup[11745]: 3378E4A592: message-id=<[email protected]> May 19 15:56:16 localhost postfix/qmgr[31910]: 3378E4A592: from=<>, size=5287, nrcpt=1 (queue active) May 19 15:56:16 localhost pop3d: LOGIN FAILED, ip=[::ffff:94.194.60.13] May 19 15:56:16 localhost pop3d: Connection, ip=[::ffff:94.194.60.13] May 19 15:56:18 localhost postfix/smtp[11806]: 127374A596: to=<[email protected]>, relay=mx1.goldenware.com[66.211.137.252], delay=8, status=sent (250 2.0.0 o4JEuF3F016245 Message accepted for delivery) May 19 15:56:18 localhost postfix/smtpd[11760]: 4AB224A596: client=unknown[109.194.137.214] May 19 15:56:18 localhost postfix/smtpd[11784]: disconnect from 58-27-154-165.wateen.net[58.27.154.165] May 19 15:56:20 localhost postfix/cleanup[11748]: 4AB224A596: message-id=<[email protected]> May 19 15:56:20 localhost postfix/qmgr[31910]: 4AB224A596: from=<[email protected]>, size=1803, nrcpt=5 (queue active) May 19 15:56:20 localhost postfix/pipe[11756]: 4AB224A596: to=<dgjyb@isdomain1>, relay=maildrop, delay=2, status=bounced (user unknown. Command output: Invalid user specified. ) May 19 15:56:20 localhost postfix/pickup[11537]: D2FD94A660: uid=1003 from=<smh> May 19 15:56:20 localhost postfix/cleanup[11745]: D2FD94A660: message-id=<[email protected]> May 19 15:56:20 localhost postfix/pipe[11834]: 4AB224A596: to=<henry@isdomain1>, orig_to=<troubleshooting@isdomain1>, relay=maildrop, delay=2, status=sent (isdomain1) May 19 15:56:20 localhost postfix/qmgr[31910]: D2FD94A660: from=<[email protected]>, size=1961, nrcpt=1 (queue active) May 19 15:56:20 localhost pop3d: Connection, ip=[::ffff:196.219.226.26] May 19 15:56:21 localhost pop3d: LOGIN, user=elana@isdomain1, ip=[::ffff:196.219.226.26] May 19 15:56:21 localhost postfix/pipe[11832]: 4AB224A596: to=<haulkhoryrashid@isdomain1>, relay=maildrop, delay=2, status=bounced (user unknown. Command output: Invalid user specified. ) May 19 15:56:21 localhost postfix/smtp[11806]: D2FD94A660: to=<[email protected]>, relay=gmail-smtp-in.l.google.com[209.85.135.27], delay=1, status=sent (250 2.0.0 OK 1274280981 y6si34251673mug.50) May 19 15:56:21 localhost pop3d: LOGIN FAILED, ip=[::ffff:94.194.60.13] May 19 15:56:21 localhost postfix/pipe[11818]: 4AB224A596: to=<ep@isdomain1>, relay=maildrop, delay=2, status=bounced (user unknown. Command output: Invalid user specified. ) May 19 15:56:21 localhost pop3d: Connection, ip=[::ffff:94.194.60.13] May 19 15:56:21 localhost postfix/pipe[11796]: 4AB224A596: to=<hooting@isdomain1>, relay=maildrop, delay=2, status=bounced (user unknown. Command output: Invalid user specified. ) May 19 15:56:21 localhost postfix/cleanup[11748]: F34A74A60A: message-id=<[email protected]> May 19 15:56:22 localhost postfix/qmgr[31910]: F34A74A60A: from=<>, size=4350, nrcpt=1 (queue active) May 19 15:56:22 localhost pop3d: LOGOUT, user=elana@isdomain1, ip=[::ffff:196.219.226.26], top=0, retr=0 May 19 15:56:22 localhost postfix/smtp[11806]: F34A74A60A: to=<[email protected]>, relay=mx.netidentity.com.cust.hostedemail.com[216.40.42.4], delay=1, status=bounced (host mx.netidentity.com.cust.hostedemail.com[216.40.42.4] said: 554 5.7.1 <[email protected]>: Recipient address rejected: user [email protected] does not exist (in reply to RCPT TO command)) May 19 15:56:24 localhost postfix/smtp[11749]: DBA7B4A64C: to=<[email protected]>, relay=mail10.cerworpmailsvcs.com[1.203.174.9], delay=9, status=sent (250 ok: Message 573474153 accepted) May 19 15:56:27 localhost pop3d: LOGIN FAILED, ip=[::ffff:94.194.60.13]
Ehm, that server looks likes it's an open relay server :/ it's accepting mail from all kinds of clients towards all kinds of receipients! "Command output: Invalid user specified", have you specified any catch all addresses? does user "ayman" exists? etc ?
actually, it seems like it does as for users, I'm sure that most of the users that I specify do exist as I said .. I'm sending from me@gsdomain1 to me@isdomain1
