On Aug 9, 2007, at 4:58 AM, Timo Sirainen wrote:

On Thu, 2007-08-02 at 12:50 -0700, Jeff Ramsey wrote:
On Aug 1, 2007, at 12:10 PM, Timo Sirainen wrote:

On Wed, 2007-08-01 at 12:05 -0700, Jeff Ramsey wrote:
Aug  1 11:58:51 imap dovecot: auth(default): passwd(QUINAULT-
ileneyoung,::ffff:10.200.254.110): lookup
Aug  1 11:58:51 imap dovecot: auth(default): passwd(QUINAULT-
ileneyoung,::ffff:10.200.254.110): unknown user
..
I did the downgrade back to 0.99.11-8.EL4, which I realize is not
truly 0.99.x, it's got some 1.0.? updates inserted from Red Hat.

Anyhow, I did not get anymore messages about 'user unknown'
immediately after the downgrade. However, I was still getting a few
'IMAP Server disconnected' errors in my Outlook clients. So, on a
hunch I ran a diff command between the default 0.99.11-8.EL4 conf
file and my old, known working 0.99.11-8.EL4 conf file, restored from
a backup, and I noticed that even though I was not using the POP3
protocol at all, I still have the outlook-pop3-no-nuls and the oe6-
fetch-no-newmail workarounds enabled, along with the outlook-idle
workaround. So, I added those two workarounds to the default config,
and it is working again. No 'IMAP Server disconnected' errors all day
long.

In 0.99.11-8.EL4, could this outlook-pop3-no-nuls be solving this
issue, even though I am using IMAP protocol, not POP3?

No, that setting doesn't do anything for IMAP. Also none of those
settings affect the "unknown user" error, so maybe 0.99 is somehow lucky
in not generating those. Perhaps setting blocking=yes to userdb passwd
args would help.


Perhaps dovecot communicates with PAM in a different way from 0.99 to 1.0.2? I don't know how else to explain it. Literally, the only time I've gotten a report of Outlook's 'IMAP server disconnected' message since the downgrade is when a user who was on a remote VPN connection left Outlook open and let his computer go into hibernation for like an hour. I'd expect dovecot to close that connection in that instance.

Since in 1.0.2, the workarounds are on a separate conf line for POP3
and IMAP, is there an equivalent workaround for Outlook with IMAP?
The wiki mentions a workaround called 'outlook-no-nuls'. Will that
one work with 1.0.2 under the IMAP workarounds line? And am I being
realistic that this may be my issue?

The outlook-no-nuls only fixes Outlook completely hanging in case it
receives a NUL byte with POP3 protocol. There's no such problem with
IMAP.



Well, today, I will build by test server, and load it up with the latest stable. And see if I can get it to work properly. I'll post my results as soon as I get some.

Thanks again,

Jeff Ramsey
MIS Administrator
TMI Forest Products, Inc.
[EMAIL PROTECTED]
360.477.0738





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