We use cookies on our website to ensure we provide you with the best experience on our website. By using our website, you agree to the use of cookies for analytics and personalized content.This website uses cookies. More Information
It seems like your browser didn't download the required fonts. Please revise your security settings and try again.

How can I use the SPF, Rate Control, RBL, and Barracuda IP Reputation features when some or all of my mail goes through a relay server before reaching my Email Security Gateway?

  • Type: Knowledgebase
  • Date changed: 10 months ago
Solution #00003211

All Barracuda Spam Firewalls, firmware versions and above.

The Trusted Forwarder feature (on the Basic > IP Configuration page) is the answer. Adding the IPs of mail proxy servers into this field (both internal and external are valid) will cause the Barracuda to look at the headers of each email coming from those relay IPs to determine the true source IPs of those emails and use the source IPs when performing the SPF, Rate Control, RBL, and Barracuda IP Reputation checks.

Having a proper trusted relay set up will allow the Barracuda to more easily identify emails that should be blocked by the Barracuda Reputation Service, RBLs, or the Rate Control feature. It will also help SPF by ensuring the sending IP used when checking for SPF is the proper one. In general, any IP that is listed in the old SPF Trusted Forwarder list (on the Advanced > Email Protocol page) should be entered into the Trusted Forwarder list on the Basic > IP Configuration page.

Link to This Page: