
SMTP Quick Reference - www.networksorcery.com/enp/protocol/smtp.htm
Internet Mail Consortium, Mail Standards - www.imc.org/mail-standards.html
Email Standards Project - www.email-standards.org/
Internet Mail - cr.yp.to/im.html
SMTP - cr.yp.to/smtp.html
DB Standards Blog - db.org/cat/standards/
Internet Mail Architecture - bbiw.net/specifications/draft-crocker-email-arch-06.html
SMTP - www.faqs.org/rfcs/rfc2821.html
Format for Email - www.faqs.org/rfcs/rfc2822.html
Multipurpose Internet Mail Extensions - www.faqs.org/rfcs/rfc2045.html
Enhanced Mail System Status Codes - www.faqs.org/rfcs/rfc1893.html
SMTP Service Extension for Returning Enhanced Error Codes - www.faqs.org/rfcs/rfc2034.html
SMTP Status Codes - www.asspsmtp.org/wiki/SMTP_Status_Codes
List Management - www.faqs.org/rfcs/rfc1211.html
Core Mail List Commands - www.faqs.org/rfcs/rfc2369.html
Identification of Mailing Lists - www.faqs.org/rfcs/rfc2919.html
Recommendations for Automatic Responses to Electronic Mail - www.faqs.org/rfcs/rfc3834.html
On the Junk Mail Problem - www.faqs.org/rfcs/rfc706.html
“Don't Spew” - www.faqs.org/rfcs/rfc2635.html
How to advertise responsibly on the net - www.faqs.org/rfcs/rfc3098.html
Requirements of Internet Hosts - www.faqs.org/rfcs/rfc1123.html
Netiquette - www.faqs.org/rfcs/rfc1855.html
Mailbox Names – abuse@ etc. - www.faqs.org/rfcs/rfc2142.html
Message Submission - www.faqs.org/rfcs/rfc2476.html