[Exim] Virtual Domains.

hi,

I could do with a few tips on setting up EXIM to work with several domains.
I have read some of the docs, but am not sure I have found the correct
solution.

If anyone knows of an Exim HOWTO for this, or has done it and can point me
in the right direction I would really appreciate it.

I'm using Exim on Debian 2.1r3 or so, and I can upgrade to Debian 2.2 if
need be.

Thanks,

Jason.