books or material on mail protocols

[Mads Rasmussen <mads () opencs com br>]

I searched amazon for books on mail protocols such as pop2/3, imap3/4 
and smtp but wasn't able to find anything interesting, like code examples.

What puzzles me are the mime encodings and if it's possible to write 
back to an imap server, you read the message, modify the body and write 
the changed message back to the imap server.
I know the source are the RFCs on each protocol, that's fine to 
understand the protocol, but how do you implement it in win2k, 2k3, unix??

Could anyone help out?

Thanks for the info on sql injection!!

Mads