Outlook 2010 woes

[Bryan Holloway]

On 10/12/16 11:51 AM, Konstantin Khomoutov wrote:
> On Wed, 12 Oct 2016 10:59:33 -0500
> Bryan Holloway <bryan at shout.net> wrote:
>
> [...]
>> New server:
>> * Debian GNU/Linux 8.6
>> * Dovecot 2.2.13
>> * Maildir++
>> * Quotas enabled
>> * LDAP
>>
>> Basically what's happening is that users are seeing large delays when
>> navigating between different IMAP folders. So, for example, user "X"
>> is sitting idle in their INBOX. If they then click on another folder
>> there's a good 6-7 second delay before you can view its contents. If
>> you immediately then navigate to other folders, you get a rapid
>> response. But if the client then goes idle again for 10+ seconds, you
>> will get this delay again. Some are reporting the OS saying "Outlook
>> is not responding." (Everyone is running Windows 7.)
> [...]
>> Any help, suggestions, or pointers would be greatly appreciated.
>
> Do you see
>
>   imap(username) Disconnected for inactivity in=X out=Y
>
> in the logs?
>
> From your description, it appears as if outlook gets disconnected at
> some point, and that's why fast changing of the folders works OK (the
> connection is live) and doing this after a pause forces a reconnect
> with the following relogin.
>
> Just a shot in the dark but still...

I do see quite a few of those, but I tend to see those for many clients 
across the board.

That does make a lot of sense though. I'm looking at the logs right now, 
and I see what amounts to a login, followed by a disconnect 10-15 
seconds later.

I thought that a standard IMAP connection stays open for at least 30 
minutes based on the RFC. (?)