This document can't go into detail on all the topics touched by the provided functions. Further information is provided by the documentation of the c-client library source (docs/internal.txt). and the following RFC documents:
Simple Mail Transfer Protocol (SMTP).
Standard for ARPA internet text messages.
Internet Message Access Protocol (IMAP) Version 4rev1.
Post Office Protocol Version 3 (POP3).
Network News Transfer Protocol (NNTP).
Common Internet Message Headers.
Multipurpose Internet Mail Extensions (MIME).
Programming Internet Email
by David Wood and » Managing
IMAP by Dianna Mullet & Kevin Mullet.