Kmail and IMAP and copy

[Peter Burggraef <usenet-peter@gmx.de>]

Hi,

when I try to copy a message from a local folder to an IMAP folder, I get the 
following error message:

#########

Datei konnte nicht geschrieben werden:

imap.server

########

and the message is not being copied into the IMAP-folder and not deleted from 
the local folder.

How can I fix it and what is the reason. 

I'm using Kmail 1.5.4

Thank you

Peter