[Dovecot] Enable outlook-idle workaround.

[AWC Maillists]

I just recently discovered dovecot.  I am evaluating the program and 
several clients uses Outlook/Outlook Express.

In the clients issues section of dovecot.org is says "You should enable 
outlook-idle workaround"

Ok, maybe I am missing something very obvious here but I can not find 
any documentation on how to implement the outlook-idle workaround.  Can 
anyone point me to an article or something with more details on this issue?

Thanks in advance.