How to address a distributionlist form script

[Stefan]

Hello List,

I have created a distributionlist named "test". With kmail, I'm able to send a 
message to this list. 
How can I send a mail from a script which is running on another host. For 
example: I have a backup-script which should send a status report to this 
list. Every time, I try to sent a mail with my script, the system tries to 
deliver the mail locally and not to my kolabserver! 
I think it's a simple task, but I don't know, where I schould start!

TIA
Stefan