[Dovecot] Outlook 2007 & 2010 hangs in v2.2?

[Andy Dills]

On 06/09/2014 05:21, Timo Sirainen wrote: 

> On 5.6.2014, at 17.38, Timo Sirainen <tss at iki.fi> wrote:
> 
>> Has anybody noticed Outlook 2007 & 2010 (but apparently not 2013) hanging IMAP connections with Dovecot v2.2 (but not v2.1) when they're FETCHing large mails? I can't think of any reasonable explanation for this.
> 
> Most likely solved by: http://hg.dovecot.org/dovecot-2.2/rev/6a9508d28d34 [1]
> 
> Strange that it didn't break more commonly or that more people weren't complaining about it.. The bug has been there since v2.2.7.

Thank you Timo. This patch did indeed correct the problem, we had no
problem doing full syncs with the problematic accounts after
implementing this. 

Is it perhaps something that only happens with directory/proxy
environments? I'm surprised it hasn't been mentioned before, I figured
it was something particular to our implementation since nobody else was
mentioning it, until you did. 

Fascinating to me that it only affects Outlook as well. I don't
understand the code well enough to grasp the impact of the bug, so if
somebody has a minute to share an explanation that would be cool. 

Andy 

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