Recent (probably MacOS) mail app provoking endless cyrus.index writes on 2.3 server. [WARNING: DKIM validation failed]

[bacon]

Apple released OS 10.11.1 update yesterday.  It shows that it includes,

- Fixes an issue where outgoing server information may be missing from 
Mail
- Resolves an issue that prevented display of messages and mailboxes in 
Mail

Does anyone know if this fixed the problem.  I've asked my users not to 
use Mail on El Capitan until this bug is fixed.

Meanwhile, I'm working in my spare time to upgrade my cyrus-imapd on 
RedHat Enterprise Linux 6 from the 2.3 series distributed by RedHat to 
the 2.5 series which I'll have to build and maintain myself.  That's an 
ugly job and one that I don't really want to do.

Fred

On 2015-10-18 06:14 AM, Bron Gondwana wrote:
> On Sat, Oct 17, 2015, at 00:22, Eric Luyten wrote:
>> On Thu, October 15, 2015 1:34 am, Bron Gondwana wrote:
>> 
>> > Absolutely no idea.  I think we have an upgraded test mac here in the
>> > office.  I'll set it up and see what it does.
>> 
>> 
>> https://discussions.apple.com/thread/7267399
> 
> Yep, I managed to get a repeat test case.  Of course on Cyrus 2.4+ the
> cost of an errant EXPUNGE command isn't very high, because it doesn't
> trigger a repack unless it actually makes a change which sets the
> MAILBOX_NEEDS_REPACK flag on the index header, so it's only going to
> affect people on ancient Cyrus.
> 
> I have no idea why they're doing an EXPUNGE every time though.
> 
> Bron.