Try sticking in a call to mail_check() in the IDLE loop. I would do it
immediately after the ping_mailbox() call, then add an
fs_give((void **) &lsterr);
to reduce the resulting babble, e.g.
if (!donefake) { /* don't ping mailbox if faking */
mail_parameters (stream,SET_ONETIMEEXPUNGEATPING,
(void *) stream);
ping_mailbox(uid);
mail_check(stream);
fs_give((void **) &lsterr);
}
Sorry about the lack of formatting, but Hotmail sucks royally when trying to
enter code.
If that solves your problem, I won't mind receiving a modest honorarium for the
patch.
-- Mark --
http://panda.com/mrc
Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.
> Date: Sat, 13 Sep 2008 13:07:01 -0400
> From: [EMAIL PROTECTED]
> To: [email protected]
> Subject: [Imap-uw] RIM Blackberry BIS service and inability to reclaim space
> (burping) following delete/expunge
>
> The following message posted to the Email Administration in Higher
> Education mailing list may also be of interest to readers of this mailing
> list ...
>
> ---------- Forwarded message ----------
> From: [EMAIL PROTECTED]
> To: Email Administration in Higher Education
> Date: Wed, 10 Sep 2008 16:26:58 -0400 (EDT)
> Subject: Re: Blackberry, in all of its awful glory
>
>> In the last 24 hours we have had 3 Blackberry IMAP users report problems
>> reducing their disk space to get under the hard quota we enforce.
>
> We see the same problem ...
>
> Here at the University of Toronto we have about 12-15 calls per day of
> customers who are over-quota, for whom "delete" followed by "expunge"
> doesn't free up storage.
>
> Based on a preliminary investigation it appears that the customers
> suffering this problem all use the Blackberry BIS service. The BIS service
> appears to have a long running (ie lasts weeks) IMAP session to access the
> INBOX with an IMAP IDLE. (An IMAP IDLE allows BIS to be notified of new
> messages essentially right away, without the need for polling.)
>
> Our IMAP server supports concurrent IMAP sessions (including concurrent
> list, fetch, and delete). Our server also appears to support concurrent
> expunge (ie any client session can do an expunge, and all concurrent IMAP
> sessions to the same INBOX all see the INBOX has been expunged), but
> actual freeing of space (sometimes called "burping"), only happens when a
> session is able to get exclusive access to the INBOX.
>
> As far as we can see, RIM's BIS server is acting according to IMAP
> standards. The problem lies in the inability to perform burping with
> concurrent access.
>
> As a bypass to the this problem, we are currently considering killing
> BIS initiated TCP/IP sessions every 10 minutes, if the customer is
> over-quota.
>
> Technical details
>
> We think the problem has been happening since about mid-August. We don't
> know if something changed around then (e.g. did RIM start supporting
> IMAP IDLE around that time?)
>
> Looking at IMAP logs, one sees many short lived connections from the RIM
> BIS service. (We haven't confirmed this, but these are likely to be for
> fetching messages.) One needs to do a "ps" to see the long living IMAP
> processes.
>
> Most of the long running BIS initiated IMAP sessions appear to have
> started on a Saturday. ie right now we see sessions that started Aug 16,
> Aug 23, and Aug 30. Perhaps RIM restarts BIS servers on Saturdays,
> rotating which BIS sever is restarted each Saturday ?
>
> We use Washington IMAP with MIX format. Mark Crispin documented burping in
> http://www.washington.edu/imap/documentation/mixfmt.txt.html including
> "Shared burping has been a problem for every other IMAP server. Most get
> it wrong, and cause terrible confusion to clients (including client
> crashes)."
>
> References for related problems which may shed light on the current
> problem,
>
> IMAP IDLE
> KB13816
> July 25, 2007
> http://www.blackberry.com/btsc/articles/436/KB13816_f.SAL_Public.html
>
> Email message delivery from IMAP IDLE integrated accounts is delayed
> KB13846
> Dec 13, 2007
> http://www.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB13846&sliceId=SAL_Public&dialogID=179992621&stateId=1%200%20179994453
>
> Blackberry blocks emails from PC
> Sep 3, 2008
> http://supportforums.blackberry.com/rim/board/message?board.id=8100&thread.id=4468
>
> Alex Nishri
> University of Toronto
> _______________________________________________
> Imap-uw mailing list
> [email protected]
> http://mailman2.u.washington.edu/mailman/listinfo/imap-uw
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