[Exim] Translating Sendmail....

I am having a real problem with a certain routing requirement that I need to convert to Exim from Sendmail.

Is there someone out there good with sendmail that I can direct a couple questions to.

I've got access to the sendmail.cf files and the *.m4 files but I know very little about Sendmail and it all looks like hash to me.

I think I know what its doing, but I know that I've already misunderstood it in the past.