[Dovecot] Problems with Outlook clients after a migration

[Timo Sirainen]

On Wed, 2010-05-26 at 13:13 +0200, Joseba Torre wrote:
> May 26 12:18:05 s000085 dovecot: IMAP(lgsavbaf): Disconnected: Logged out 
> bytes=142/1525
> 
> (is this outlook quitting?)

Yes, Outlook sent LOGOUT command.

> but also some
> May 26 12:19:22 s000085 dovecot: IMAP(lgsavbaf): Disconnected in IDLE 
> bytes=161/2018

Something disconnected the client. Maybe you've a
firewall/load-balancer/etc in the middle that doesn't like long idling
connections? Although that wouldn't explain why it worked with v1.1.

You could also try it yourself:

telnet imap.server.com 143
a login user pass
b idle

and see if it gets disconnected. It should also send "* OK Still here"
every 2 minutes, so I'd guess nothing should disconnect it..