Technical Tip: Greylist exemption for IPv6

[vchauhan]

Description	This article describes that the greylist exemption does not work for the IPV6.
Scope	FortiMail versions 6.0, 6.2 ,6.4 and 7.0
Solution	The sender IP is in IPv4 format 0.0.0.0/0 by default. A second exempt list entry with the sender IP as::/0 and the reverse DNS pattern should allow the greylist to be exempted when sourced from IPv6 IPs. From CLI: # config antispam greylist exempt     edit 0         set sender-ip ::/0         set reverse-dns-pattern *.outbound.protection.outlook.com     next end Change the reverse- dns-pattern as per the requirement if needed.