wie komm ich wieder raus?

was muß ich tun um aus der liste auszusteigen? bei mir kommt da ne fehlermeldung daß:

This is the Postfix program at host zappa.oak.suse.com.

I'm sorry to have to inform you that the message returned below could not be delivered to one or more destinations.

For further assistance, please contact

If you do so, please include this problem report. You can delete your own text from the message returned below.

The Postfix program

: unknown user: "use-linux-unsubscribe"