0a6419d7__virus_filter_for_SMTP_servers__Comments
[Token] X-LINK2STATE [Type] Keyword [Reference] Microsoft [SMTP server] Microsoft Exchange Server [Comments] 
Indicates support for the X-LINK2STATE verb
ESMTP Keywords and Verbs (commands) Defined - Fluffy the SMTPGuardDog - spam and virus filter for SMTP servers
Comments