dovecot - Apr 2007 - Login lockups

When dovecot works - it works great, and I thank you.  But it seems like 
every time I setup a new server, it's a challenge getting the IMAP 
logins to work reliably.

The changelog's top comment is stamped 2007-01-05, 18:48 if that helps 
nail down the version (I'm using a Debian/Ubuntu package).

Both non-SSL and SSL logins have the problem.  This time around I'm 
using LDAP authentication - and once I figured out how it worked 
beautifully.  The problem is from time to time - with no particular 
consistency - I lose the ability to log in.  A "telnet localhost 143"
on
the server works with a Dovecot response, then followed with a "01 LOGIN 
<user> <password>" results in a long delay, then a timeout,
with no log
files affected.

What can I provide to try to trace this?

protocols = imap imaps
disable_plaintext_auth = no
login_process_per_connection = yes

--
Daniel

> The changelog's top comment is stamped 2007-01-05, 18:48 if that helps 
> nail down the version (I'm using a Debian/Ubuntu package).
dovecot --version will tell you the exact version. Why guess?
> Both non-SSL and SSL logins have the problem.
The version you are using is very old with respect to dovecots current 
state. Iirc, there were *many* changes to do with ldap, ssl and login 
issues that are fixed in current releases.

Please find a current release (rc29 is the current one), and see if that 
fixes your problems.

-- 

Best regards,

Charles