[Discover] Post Office Protocol - Version 3 http://www.ietf.org/rfc/rfc1939.txt
(email reference standards rfc) 
[Discover] Dovecot http://www.dovecot.org/ (email opensource imap computers)
[Discover] Simon Cozens : The Internet Protocol Phrasebook http://simon-cozens.org/programmer/phrasebook.html (smtp imap reference http)
[Discover] Courier-IMAP http://www.courier-mta.org/imap/ (imap email software unix)
[Discover] Essential Internet Protocols - POP3 http://www.vanemery.com/Protocols/POP/pop.html (programming reference ssl)
[Discover] DBMail: fast and scalable sql based mail services http://www.dbmail.org/ (database email software linux)
[Discover] software:mailfeed [wonkowiki] http://wiki.wonko.com/software/mailfeed/ (email imap php nntp)
[Discover] RFC 1939 (rfc1939) - Post Office Protocol - Version 3 http://www.faqs.org/rfcs/rfc1939.html (email reference rfc network)
[Discover] Courier Mail Server http://www.courier-mta.org/ (email mail server smtp)
[Discover] Qpopper Information http://www.eudora.com/products/unsupported/qpopper/index.html (email software server mail)
[Discover] Project Cyrus http://cyrusimap.web.cmu.edu/ (imap email opensource mac)
[Discover] Mail.dll component for .NET 2.0 http://www.lesnikowski.com/mail/ (email smtp .net library)
[Discover] Java Tip 115: Secure JavaMail with JSSE - Java World http://www.javaworld.com/javatips/jw-javatip115.html (java email javamail ssl)
[Discover] com.sun.mail.pop3 (JavaMail API documentation) http://java.sun.com/products/javamail/javadocs/com/sun/mail/pop3/package-summary.html (mail java)
[Discover] HOWTO Re-Download Gmail Messages Into Outlook http://www.geektronica.com/2007-04-07-howto-re-download-gmail-messages-into-outlook (email google hack backup)
[Discover] Frequently Asked Questions for System.Web.Mail http://www.systemwebmail.com/ (.net email programming asp.net)
[Discover] pop.phps (php) code.nulldigital.net http://nulldigital.net/code.php?pop.phps (implementation email php)
[Discover] 用PHP实现POP3邮件的解码 http://www.yuzi.net/Show.asp?id=7408 (mime)
[Discover] RFC1939-POP3协议中文版-- http://www.cnpaf.net/class/POP3/0532918532678731.html
[Discover] Dovecot http://www.dovecot.org/ (email opensource imap computers)
[Discover] Simon Cozens : The Internet Protocol Phrasebook http://simon-cozens.org/programmer/phrasebook.html (smtp imap reference http)
[Discover] Courier-IMAP http://www.courier-mta.org/imap/ (imap email software unix)
[Discover] Essential Internet Protocols - POP3 http://www.vanemery.com/Protocols/POP/pop.html (programming reference ssl)
[Discover] DBMail: fast and scalable sql based mail services http://www.dbmail.org/ (database email software linux)
[Discover] software:mailfeed [wonkowiki] http://wiki.wonko.com/software/mailfeed/ (email imap php nntp)
[Discover] RFC 1939 (rfc1939) - Post Office Protocol - Version 3 http://www.faqs.org/rfcs/rfc1939.html (email reference rfc network)
[Discover] Courier Mail Server http://www.courier-mta.org/ (email mail server smtp)
[Discover] Qpopper Information http://www.eudora.com/products/unsupported/qpopper/index.html (email software server mail)
[Discover] Project Cyrus http://cyrusimap.web.cmu.edu/ (imap email opensource mac)
[Discover] Mail.dll component for .NET 2.0 http://www.lesnikowski.com/mail/ (email smtp .net library)
[Discover] Java Tip 115: Secure JavaMail with JSSE - Java World http://www.javaworld.com/javatips/jw-javatip115.html (java email javamail ssl)
[Discover] com.sun.mail.pop3 (JavaMail API documentation) http://java.sun.com/products/javamail/javadocs/com/sun/mail/pop3/package-summary.html (mail java)
[Discover] HOWTO Re-Download Gmail Messages Into Outlook http://www.geektronica.com/2007-04-07-howto-re-download-gmail-messages-into-outlook (email google hack backup)
[Discover] Frequently Asked Questions for System.Web.Mail http://www.systemwebmail.com/ (.net email programming asp.net)
[Discover] pop.phps (php) code.nulldigital.net http://nulldigital.net/code.php?pop.phps (implementation email php)
[Discover] 用PHP实现POP3邮件的解码 http://www.yuzi.net/Show.asp?id=7408 (mime)
[Discover] RFC1939-POP3协议中文版-- http://www.cnpaf.net/class/POP3/0532918532678731.html