error receiving iCal email

[Nik777]

Hi All,

When checking the logs of my kolab server, I recently found the 
following in resmgr.log:

> May 30 14:25:09 kolabmailboxfilter.php[32072]: Error decrypting 
> password: error:0407106B:rsa 
> routines:RSA_padding_check_PKCS1_type_2:block type is not 02
> May 30 14:25:09 kolabmailboxfilter.php[32072]: Error decrypting 
> password: error:04065072:rsa routines:RSA_EAY_PRIVATE_DECRYPT:padding 
> check failed
...
> May 30 14:25:09 kolabmailboxfilter.php[32072]: Error: IMAP Errors from 
> createMailBox: NO, Permission denied
> May 30 14:25:09 kolabmailboxfilter.php[32072]: Error: Error, could not 
> open calendar folder!

The result is that any email (to this recipient at least) which contains 
a vCard is not being delivered.

Is there some script or process I can run to fix this problem? Do I need 
to reset the password for the kolab calendar-user?

I can supply the complete log of this event if that would help anyone.

Cheers!
Nik