SMTP Recipient Verification

[telescop]

I am looking to configure my Zimbra server to provide SMTP recipient verification to my Barracuda Spam Firewall. Can anyone please let me know if they have done this and the steps required to get it configured. Thank you very much.

[mja]

I know that it is an old topic (2010), but this post is show in the first results in a search.

I successfully configure this for SpamExperts using this wiki changing the smtpd_reject_unlisted_recipient:

https://wiki.zimbra.com/wiki/Rejecting_ ... _addresses

Regards,
Marlon