I've a postfix server which has multi domains and I want to have a specific cert per each. My server has only one IP.
I've found a solution with multi IP, but without I don't know how to do this.
- Server : Debian 9
- Postfix : 3.1.8
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As far i know there is no working SNI in postfix . Yet. Docs ( http://www.postfix.org/TLS_README.html ) say that "There are no plans to implement SNI in the Postfix SMTP server.", though Victor mentioned in January that he wants to add SNI support to postfix 3.4 . Alternatives :
Also there is nothing wrong with having the same MX for all domains. MX hostname being your service domain or something. Also helo/ehlo name configured to the same/similar hostname . If its good for GoogleApps and other major email providers, then its good for us too.