kmail sometimes hangs after getting mail

[Hendrik Sattler <ubq7@rz.uni-karlsruhe.de>]

Hi,

KMail shows really strange behaviour. I configured it to automatically get 
mail every 15 minutes.
Sometimes, this hangs at closing the connection (how the hell can a program 
hang here?). One might think that this action has a timeout. But no, there is 
none because only pressing the red buttoon helps (and who removed the global 
stop button?). This results immediately in getting mail again because 15 
minutes already passed.

Maybe the server is a bit broken but I don't care as it is not under my 
control. And the problem does not occur every time but only once in a while.

Any ideas about this?

HS