Mail retrieval - connection intentionally closed by the server

[vincentthe]

Hello,

This happens on 2 domains only, the configuration was working smoothly but now (without any changes that I know of) the following error occurs when trying to fetch mail from either imap or pop3:

- The connection was intentionally closed by the server before the session was completed.

This is after the user/passwd check is completed.

How do I fix this?

[vincentthe]

Well, the cause of the problem is still unknown but somehow it disappeared...

[vincentthe]

And the problem is back again, this time on another domain and with extra complications.

When you send a message to this domain postfix wil return this:

Final-Recipient: rfc822; ds2_w27_kresten@ds2.tt-hosting.nl
Original-Recipient: rfc822; testing@kresten.nl
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; maildir delivery failed: create
/var/www/web27/Maildir/tmp/1167817327.P9625.ds2.adsl.utwente.nl: Permission
denied

* another question on the side, the hostname for this server during install was ds2.adsl.utwente.nl but that was temporary, postfix/spamassassin still use this but I can't find it in the config files. Where should I look to change this?

[till]

Please post the output of::

ls -la /var/www/web27/Maildir
ls -la /var/www/web27/Maildir/tmp

[vincentthe]

root@ds2:/var/www/web27# ls -al Maildir
lrwxrwxrwx 1 root root 43 2007-01-03 11:07 Maildir -> /var/www/web27/user/ds2_w27_kresten/Maildir
root@ds2:/var/www/web27# ls -al Maildir/tmp
total 8
drwx------ 2 ds2_w27_kresten web27 4096 2007-01-03 11:06 .
drwx------ 5 ds2_w27_kresten web27 4096 2007-01-03 11:06 ..
root@ds2:/var/www/web27#

[vincentthe]

Restarting courier/postfix, changing permissions on the directory's won't work. Adding another user and/or deleting and creating the mailusers from scratch don't give anything either.

I can't see any related entry's in /var/log/mail.err or /var/log/mail.info or /var/log/mail.log

[falko]

What's the output of

ls -la /var/www/web27/user/ds2_w27_kresten/Maildir

?

[vincentthe]

root@ds2:/var/www/web27/user/ds2_w27_kresten/Maildir# ls -al
total 20
drwx------ 5 ds2_w27_kresten web27 4096 2007-01-04 11:14 .
drwxr-xr-x 4 ds2_w27_kresten web27 4096 2007-01-04 11:14 ..
drwx------ 2 ds2_w27_kresten web27 4096 2007-01-04 11:14 cur
drwx------ 2 ds2_w27_kresten web27 4096 2007-01-04 11:14 new
drwx------ 2 ds2_w27_kresten web27 4096 2007-01-04 11:14 tmp

I "solved" the problem by deleting the site and creating it again. However another site suddenly gave the same (failed create: permission denied) error which also worked fine before. This time the site only had 1 mailuser which forwarded all mail to another domain without storing it in the user mailbox or doing any spam/mailscan activities. Here the "solution" also was to remove and re-create from scratch.

[till]

Is the ls output above before or after you recreated the site?

[vincentthe]

This above output is before.

The output beneath is after:
root@ds2:/var/www/web29/user/ds2_w29_kresten# ls -al Maildir/
total 32
drwx------ 5 ds2_w29_kresten web29 4096 2007-01-03 12:22 .
drwxr-xr-x 5 ds2_w29_kresten web29 4096 2007-01-03 13:06 ..
-rw-r--r-- 1 ds2_w29_kresten web29 5540 2007-01-03 13:24 courierpop3dsizelist
drwx------ 2 ds2_w29_kresten web29 8192 2007-01-03 13:24 cur
drwx------ 2 ds2_w29_kresten web29 4096 2007-01-05 10:39 new
drwx------ 2 ds2_w29_kresten web29 4096 2007-01-05 10:39 tmp

And the new output from the other site.
root@ds2:/var/www/web40/user/ds2_w40_info# ls -al Maildir/
total 20
drwx------ 5 ds2_w40_info web40 4096 2007-01-04 11:14 .
drwxr-xr-x 4 ds2_w40_info web40 4096 2007-01-04 11:14 ..
drwx------ 2 ds2_w40_info web40 4096 2007-01-04 11:14 cur
drwx------ 2 ds2_w40_info web40 4096 2007-01-04 11:14 new
drwx------ 2 ds2_w40_info web40 4096 2007-01-04 11:14 tmp


The most problematic thing is that I can't see or predict when these things are happening. Luckily both the sites with problems so far were e-mail (with very few users) only, so it was easy to delete/recreate. I don't even want to think about what is going to happen if one of the larger sites/domains is being struck with this problem.