[horde] imp: unable to send data

[Norbert Schulze]

Hello,

I use imp from the anonymous cvs.
Nearly everything(turba, kronolith,nag,mnemo) works fine. I can use imp, to 
read messages from a cyrus mail server.
But I cannot send emails written in the compose window.
The Logfile has the following entry:

Apr 30 16:11:16 HORDE [error] [imp] unable to send data [on line 804 of 
"/usr/local/httpd/htdocs/horde/imp/compose.php"]

I configured the smtp-server in the /horde/config/conf.php and in the 
/imp/config/servers.php

Please help me

Norbert