1.2.2 Informative References

[MS-SMTPNTLM] Microsoft Corporation, "NT LAN Manager (NTLM) Authentication: Simple Mail Transfer Protocol (SMTP) Extension".

[MS-XLOGIN] Microsoft Corporation, "Simple Mail Transfer Protocol (SMTP) AUTH LOGIN Extension".

[RFC1870] Klensin, J., Freed, N., Ed., and Moore, K., "SMTP Service Extension for Message Size Declaration", STD 10, RFC 1870, November 1995, http://www.rfc-editor.org/rfc/rfc1870.txt

[RFC3207] Hoffman, P., "SMTP Service Extension for Secure SMTP over Transport Layer Security", RFC 3207, February 2002, http://www.rfc-editor.org/rfc/rfc3207.txt

[RFC4409] Gellens, R., and Klensin, J., "Message Submission for Mail", RFC 4409, April 2006, http://www.rfc-editor.org/rfc/rfc4409.txt

[RFC5322] Resnick, P., Ed., "Internet Message Format", RFC 5322, October 2008, http://www.rfc-editor.org/rfc/rfc5322.txt