Fredderic wrote:
> It's going through the documentation and figuring out what to stick
> where, that's the hard part.

It depends on the arguments passed to exim when it's started. See:
http://www.exim.org/exim-html-curren...html/ch03.html
.... look at section "3.5 Receiving mail". I think you would want to
insert your rule at the top of the rule stack (-I option for iptables)
to ensure it's one of the first rules that are processed before any
other rule that may end up processing it and letting it through.


> Out of curiosity, I'm wondering which people prefer; the Exim
> configuration all in one piece, or individual files?

I think for most simple setups, people prefer a single config file.

- Ken