Can a Barracuda Spam Filter 300 reject mail based on DNS?

Posted by user84104 on Server Fault See other posts from Server Fault or by user84104
Published on 2011-11-17T23:09:32Z Indexed on 2011/11/18 1:53 UTC
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barracuda

Can a Barracuda SF 300 reject mail based on DNS?

Specifically can it respond with a 4XX code for mail claiming to be from a domain without a valid MX or A record (similar to postfix's smtpd_sender_restrictions = reject_unknown_sender_domain).

If so, how do I set it? (I realize it's probably something simple I've overlooked.)

The barracuda can resolve using its configured name servers.
The name servers can correctly resolve external domains.

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