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Barracuda Email Security Gateway

How do I disable the VRFY SMTP command on the Barracuda Spam Firewall?

  • Type: Knowledgebase
  • Date changed: 3 years ago
Solution #00001822

Scope:
This applies to all Barracuda Spam Firewall models, on any version of the firmware.

Answer:
The VRFY SMTP command is actually already disabled by default.

You can telnet to the Barracuda on port 25 and issue a VRFY command after the 220 banner: Upon doing so you should see:

502 VRFY command is disabled

Link to This Page:
https://campus.barracuda.com/solution/50160000000GVWHAA4