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  #1  
Old 25th June 2009, 17:21
Cojones Cojones is offline
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Default Debian, Postfix, Courier-IMAP -> 0x800CCC0E error in Outlook

Hello,

I'm running a Debian server (postfix, courier-imap, courier-pop) with several domains and email addresses. If I use POP3 everything's just fine but whenever I try to use IMAP I get following error:
Task 'Synchronizing subscribed folders for [email address].' reported error (0x800CCC0E) : 'Outlook cannot synchronize subscribed folders for [email address]. Error: Cannot connect to the server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).'

But the problem is that it works at times but 3/4 times it doesn't. Does anyone know what the problem could be?

Thank you
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  #2  
Old 26th June 2009, 14:19
falko falko is offline
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What's the output of
Code:
netstat -tap
? Any errors in your mail log?
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  #3  
Old 26th June 2009, 14:35
Cojones Cojones is offline
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Couldn't find any suspicious entries in my mail log.

netstat seems pretty ok as well:
Code:
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 server8.local:8000      *:*                     LISTEN     11775/ruby
tcp        0      0 server8.local:8001      *:*                     LISTEN     11778/ruby
tcp        0      0 *:32769                 *:*                     LISTEN     1203/rpc.statd
tcp        0      0 server8.local:8200      *:*                     LISTEN     12024/ruby
tcp        0      0 server8.local:10024     *:*                     LISTEN     828/amavisd (master
tcp        0      0 server8.local:8201      *:*                     LISTEN     12027/ruby
tcp        0      0 server8.local:mysql     *:*                     LISTEN     1034/mysqld
tcp        0      0 *:pop3                  *:*                     LISTEN     2052/couriertcpd
tcp        0      0 *:imap2                 *:*                     LISTEN     2045/couriertcpd
tcp        0      0 server8.local:spamd     *:*                     LISTEN     839/spamd.pid
tcp        0      0 *:sunrpc                *:*                     LISTEN     583/portmap
tcp        0      0 *:www                   *:*                     LISTEN     11048/apache2
tcp        0      0 *:auth                  *:*                     LISTEN     1096/inetd
tcp        0      0 server8.local:9876      *:*                     LISTEN     1315/vhcs2_daemon
tcp        0      0 server8:domain          *:*                     LISTEN     15699/named
tcp        0      0 server8.local:domain    *:*                     LISTEN     15699/named
tcp        0      0 *:ftp                   *:*                     LISTEN     1235/proftpd: (acce
tcp        0      0 *:ssh                   *:*                     LISTEN     1189/sshd
tcp        0      0 *:smtp                  *:*                     LISTEN     15767/master
tcp        0      0 server8.local:953       *:*                     LISTEN     15699/named
tcp        0      0 *:https                 *:*                     LISTEN     11048/apache2
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  #4  
Old 27th June 2009, 19:38
falko falko is offline
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Is there maybe a firewall blocking access to port 143 (IMAP)? What's the output of
Code:
iptables -L
?
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  #5  
Old 28th June 2009, 00:22
Cojones Cojones is offline
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Wouldn't it be not working at all if it was blocked? Well, it's not:
Code:
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
           tcp  --  anywhere             anywhere            tcp dpt:smtp
           tcp  --  anywhere             anywhere            tcp dpt:imap2
           tcp  --  anywhere             anywhere            tcp dpt:pop3
           tcp  --  anywhere             anywhere            tcp dpt:www
           0    --  anywhere             anywhere

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
           tcp  --  anywhere             anywhere            tcp spt:smtp
           tcp  --  anywhere             anywhere            tcp spt:imap2
           tcp  --  anywhere             anywhere            tcp spt:pop3
           tcp  --  anywhere             anywhere            tcp spt:www
           0    --  anywhere             anywhere
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  #6  
Old 28th June 2009, 13:48
falko falko is offline
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Are there any IMAP records at all in your mail log?
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  #7  
Old 28th June 2009, 14:03
Cojones Cojones is offline
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Yes:
Code:
Jun 28 06:39:22 myserver couriertcpd: LOGIN: ip=[::ffff:XX.XX.XX.XX], command=LOGIN
Jun 28 06:39:22 myserver  couriertcpd: LOGIN: ip=[::ffff:XX.XX.XX.XX], username=user@example.foo
Jun 28 06:39:22 myserver  couriertcpd: LOGIN, user=user@example.foo, ip=[::ffff:XX.XX.XX.XX], protocol=IMAP
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  #8  
Old 29th June 2009, 12:31
falko falko is offline
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I'm sorry, but I don't know what's wrong...
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  #9  
Old 29th June 2009, 13:00
Cojones Cojones is offline
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Thanks anyways. Maybe someone else?
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  #10  
Old 3rd July 2009, 12:34
Cojones Cojones is offline
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No one?
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