exim-using packages - are you relying on -C or -D options?

[Ian Jackson]

Andreas Metzler writes ("exim-using packages - are you relying on -C or -D options?"):
> Do you know packages that rely on the -D or -C options? For -C
> option, in which directory is the alternate configuration file searched
> for?

sauce uses the -C option.  And chiark's mail system relies on -C very
heavily in other ways.  Please don't break it.

Ian.