🚀 go-pugleaf

I am interested in any pointer someone can give me on how to write an 
email server for a UNIX system. I'd like to be able to set up an account
that people can email, with messages that would be interpreted, and
the emailee would receive information back based on the message they sent.
Basic stuff, I'm sure, but I'm not quite clear how to go about it. Is
there a book or document of some sort I could look up?

If this is in the wrong newsgroup, please tell me where I ought to post
it. In any case, please email me responses, as I don't read this newsgroup
generally.

Thanks very much.


-- 
Adam J Weitzman - weitzman@chaos.cs.brandeis.edu
                   Richard H. Kirk of Cabaret Voltaire, on whether his band is
                   avant-garde: "With a name like Cabaret Voltaire, I think 
                   we've used up quite enough French words already, really."