[Exim] Route mail to non-standard port

Hi,

I have a special routing for a domain. My server receives the mail for
domain xyz.com,
and instead of doing your normal average day stuff with it I catch it in a
router
that routes it to mail.xyz.com that only allows connections from my mail
server.

That's not a problem. However is it also possible to route mail to
mail.xyz.com on
a non standard port on mail.xyz.com for instance 1025? Ofcourse my server
still needs
to accept mail only on port 25.


I now have this:

route_list = * mail.xyz.com bydns

Thanks

Sincerly,
Pascal