smtp connector?

Hi world,

I want to replace my existing ms exchange
server with the "suse open exchange server"
( it's a all-in-one server), which uses
postfix an Cyrus imap for email handling.

I'm a newbie to Cyrus imap and postfix,
so I have a question about a feature I need.

If a mail client sends an email to a special
domain, e.g. *****@telefax.local the mail
has to be send to an other
email server(ip or name based)

In the ms exchange server configuration
this feature has the name "smtp connector"

Does cyrus and postfix support this feature?

Thx a lot david