Problem with receiving mail in Kontact

[Dennis Neumeier]

Hello,

I just installed kolab under my debian system and now, I am having problems 
with receiving mail under Kontact with kmail  1.13.2. kolabd itself is:

2.2.4-20100624-4

I configured 2 mail accounts under Kolab, one for sending and one for 
receiving. To make it short, all seems to work. mails are going out and are 
delivered to tzhe recipients mailbox. When I look into the mailbox via 

openssl s_client -connect mail.myserver.com:993

with the account of the recipient, I can see that the mails are there. But 
unter Kmail... Nothing, it even does not display one single folder under the 
Disconnected imap I configured to receive mails (I did not change any of the 
standard port settings under kmail). Also, when I now rightclick on the 
disconnected imap folder in kmail and select check for new mail, it says that 
there are no new mails...

I looked into the logs (mail.info, mail.err and mail.log) during checking for 
new mail, but no entries at all. Can somebody please give me a hint where the 
problem may be?

Greets,
Dennis