Inbound SMTP from a specified IP only

[ThomasB]

My Zimbra server handles several domains.

For one of the domains, I'd like the server to accept incoming SMTP connections only from *one* given IP (our NATted internal network).

I cannot lock down using the firewall - as connections from the same IP (AND other addresses) bound for a different domain should be let through.

Can this be done without affecting how Zimbra handles mail for the other domains?

Thankful for any hints!

Rgrds,
Thomas B

[Hivos]

In the admin console you can specify an "inbound smtp hostname" on a per domain basis. I don't use it, but it sounds like it does what you need...

[ThomasB]

Originally Posted by Hivos

In the admin console you can specify an "inbound smtp hostname" on a per domain basis. I don't use it, but it sounds like it does what you need...

Thanks for your reply. I agree, the text "inbound smtp hostname" could indicate something to do with this, but unfortunately it doesn't:

http://www.zimbra.com/forums/administrators/32212-inbound-smtp-hostname-checking.html

Brian of Zimbra says:

nbound SMTP hostname applies only to the "Check DNS" button. A significant number of forum and support cases revolve around improperly configured DNS MX settings. That combined with an increased number of ISP's offering self-service ZCS domains, it provides a means for customers to easily make sure their DNS is pointed at the expected server.