Redirection problem

[Andras Micsik <micsik@sztaki.hu>]

Hi,

this may be a simple problem, yet I'm stuck with it. I have two names for
a host: A and B.

I want messages arriving to X@A to be processed normally by zmailer.
(where X means *any* token or user name)

I want messages arriving at X@B to be processed by another software
sitting on another port (1900) of the same machine. So X@B type messages
should be piped or redirected to localhost:1900.

How can I teach zmailer to do this?

-----------------------------------------------------------
  Andras Micsik              micsik@sztaki.hu
  MTA SZTAKI Hungary         http://www.sztaki.hu/~micsik