[opensuse] postfix: how to route by sender?

I understand the /etc/postfix/transport - route by destination. But what if I want to by sender? What if I want "*@antonaylward,com" to use "smtp:[mail.antonaylward.com]" ? -- Everything that is really great and inspiring is created by the individual who can labor in freedom. -- Albert Einstein, in H. Eves Return to Mathematical Circles, Boston: Prindle, Weber and Schmidt, 1988. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org