Spam and Security Checks for IPv6 Systems

This article applies to recent versions of SmarterMail. View articles for SmarterMail 16.x and earlier.

With the introduction of IPv6 in SmarterMail 11.x, there are a few security and spam checks included within SmarterMail that are exclusively IPv4 based. Below is a list of what is compatible with IPv6 from a security and anti-spam perspective.

IPv6 Anti-virus
All anti-virus measures within SmarterMail work with IPv6

IPv6 Anti-spam
SpamAssassin-based Pattern Matching
Remote SpamAssassin
Message Sniffer
Custom Rules

IP-based Checks Disabled for IPv6
Reverse DNS

Other Checks Disabled for IPv6
Black and White Lists
DOS and Brute Force Intrusion Detection

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