[imp] Authentication Problems

[Ryan Burton]

Ok, I am still having problems authenticating using either IMP, Mozilla 
Mail, Outlook....doesn't matter.  I have increased the allowable 
connections from on IP, and the number of daemons, but doesn't help.  
Here are some symptoms:

- Mail client works sometimes, then says "Login to server failed", then 
I have to enter my login information again.  Sometimes it asks me 3 or 4 
times before finally accepting.
- IMP webmail is the same thing.  Sometimes I can login ok, but it will 
log me out at radom times.  Sometimes while clicking on mail, options, 
folders...whatever.  Then I get back to the login prompt...try again a 
few times, and it might let me back in.
- Sometimes I log in to Horde, but when it lists the modules (email, 
calendar, address book..), under mail it says 'Please log in', even 
though I just did.

I have read 5.3.9 of the Horde FAQ, and that did not help.  I have tried 
other suggestions from people who responded to me before, but nothing 
has worked.  This is what the maillog looks like, but doesn't really say 
much.  The ones with internal IP are from Windows mail client, external 
is from webmail.

Oct 22 17:54:47 blasted imapd: Connection, ip=[::ffff:192.168.104.30]
Oct 22 17:55:02 blasted imapd: LOGIN FAILED, ip=[::ffff:192.168.104.30]
Oct 22 17:55:22 blasted last message repeated 2 times
Oct 22 17:56:01 blasted imapd: Connection, ip=[::ffff:192.168.104.30]
Oct 22 17:56:06 blasted imapd: LOGIN FAILED, ip=[::ffff:192.168.104.30]
Oct 22 17:56:12 blasted imapd: LOGIN, user=user%example.com, 
ip=[::ffff:192.168.104.30], protocol=IMAP
Oct 22 17:56:33 blasted imapd: Connection, ip=[::ffff:25.113.71.62]
Oct 22 17:56:33 blasted imapd: LOGIN, user=user at example.com, 
ip=[::ffff:25.113.71.62], protocol=IMAP
Oct 22 17:56:33 blasted imapd: LOGOUT, user=user at example.com, 
ip=[::ffff:25.113.71.62], headers=0, body=0
Oct 22 17:56:34 blasted imapd: Connection, ip=[::ffff:25.113.71.62]
Oct 22 17:56:39 blasted imapd: LOGIN FAILED, ip=[::ffff:25.113.71.62]
Oct 22 17:56:49 blasted last message repeated 2 times
Oct 22 17:56:49 blasted imapd: LOGOUT, ip=[::ffff:25.113.71.62]
Oct 22 17:57:12 blasted imapd: Connection, ip=[::ffff:25.113.71.62]
Oct 22 17:57:12 blasted imapd: LOGIN, user=user at example.com, 
ip=[::ffff:25.113.71.62], protocol=IMAP
Oct 22 17:57:12 blasted imapd: LOGOUT, user=user at example.com, 
ip=[::ffff:25.113.71.62], headers=0, body=0
Oct 22 17:57:13 blasted imapd: Connection, ip=[::ffff:25.113.71.62]
Oct 22 17:57:14 blasted imapd: LOGIN, user=user at example.com, 
ip=[::ffff:25.113.71.62], protocol=IMAP
Oct 22 17:57:14 blasted imapd: LOGOUT, user=user at example.com, 
ip=[::ffff:25.113.71.62], headers=1276, body=0

I really hope someone can help, I can't figure it out.  If it makes a 
difference I am running Slackware 8.1, newest versions of Horde and 
components, courier-0.43.2, php-4.3.3, vpopmail-5.2.1, and mysql 3.23.52.

Thank you!
ryan.