In a message dated: Wed, 03 May 2000 08:34:19 EDT
Benjamin Scott said:
> IMAP requires that an "expunge" command be sent to actually remove deleted
>messages; many (most?) IMAP clients make little or no mention of this by
>default. Of course, you say the messages were showing up *new and unread*,
>but maybe there is some user confusion too?
Well, let me restate. They were being marked "Unread", which, for all intents
and purposes, is also "New", thought the date stamp on the e-mail did not
change.
> Possibly more likely, if any other process have the mailbox locked, then
>IMAP will treat the folder as "read only".
I thought of this and killed off all imap processes on the server. This
seemed to have no affect.
> Now, what causes the mail folder to be open elsewhere?
>
> First, make sure they aren't doing something silly, like logging in at
>another computer and leaving the mail client open there. This is especially
>common if they are accessing their mail from home. "netstat -tup | grep imap"
>on the mail server works well for this.
No, the users in question are logging in only from their desktops, which are
*mostly* Windows systems (but not all, I've seen in on a couple of Linux
systems too).
> I think sendmail (or some other MDA) could cause a momentary error if it is
>delivering mail at the same time somebody tries to read their mail. But your
>problem sounds a little more frequent then that.
A lot more frequent. It's not a sendmail locking problem, or I'd expect to
either see this across the entire user base, or not at all.
> Lastly, I've seen cases where the IMAP server will apparently not notice the
>user connection has terminated. It sits there in the "ESTABLISHED" state
>indefinitely, never closing the connection, or the mail folder. I haven't
>been able to determine what causes this yet, but I also haven't had much time
>to look at it.
This is entirely possible, though I've killed off all imapd processes and
restarted the clients with no effect.
>> Additionally, Netscape complains that the disk is full when trying to
>> purge the deleted mail from the folders.
> It might be interpreting the "read only" status of the folder incorrectly.
>See above. (I assume the disk actually does have free space on it... :)k
That does sound like the most plausible explanation for this portion of the
problem. Though it doesn't explain everything, it's at least an explanation :)
I'm going to upgrade the imap server and see what happens.
Thanks,
--
Seeya,
Paul
----
"I always explain our company via interpretive dance.
I meet lots of interesting people that way."
Niall Kavanagh, 10 April, 2000
If you're not having fun, you're not doing it right!
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