Hi Everyone!

I wonder if someone would provide me with some advice. I've been setting up a couple of Postfix servers just for fun. I've got two Postfix servers m1.domain.com and m2.domain.com. I can send and receive mail via both of them. Ive also got Postfixadmin and RoundCube on them and I'm replicating the database over both servers.

I introduced a load balancer. Postfixadmin and Roundcube work perfectly. However. When I send mail from Thunderbird. M1 reports that the certificate does not match. It's expecting a certificate for mail.domain.com.

On M1 I thought I would try to specify the location of the SSL when using mail.domain.com. I placed the certificate in the NAS and specified it in the 10-ssl file. I did this as per the docs.

mail.domain.com local_name mail.domain.com { ssl_cert = </nas/ssl/fullchain.pem ssl_key = </nas/ssl/privkey.pem }

It doesn't work. And I'm not entirely sure why M2 works and M1 doesn't. As far as I can see I haven't specified or placed a certificate for mail.domain.com on M2 and searching my bash history doesn't produce anything related to mail.domain.com.

So how can I load balance email connections over my two servers without getting a damn certificate warning?

Any help would be much appreciated.

Thanks.