FortiOS 5.6 Online Help Link FortiOS 5.4 Online Help Link FortiOS 5.2 Online Help Link FortiOS 5.0 Online Help Link
> Chapter 5 - Best Practices > Security Profiles > Antispam

Home > Online Help

Antispam

  • If possible use, a FortiMail unit. The antispam engines are more robust.
  • Use fast DNS servers.
  • Use specific security profiles for the rule that will use antispam.
  • DNS checks may cause false positive with HELO DNS lookup.
  • Content analysis (banned words) may impose performance overhead.