Wrong SSL cert for email?

Hi, I have a purchased SSL cert running fine and passes tests for my domain, but when open Outlook I get an error for an untrusted cert and it shows the "issued by Centos Web Panel" and not the one I purchased.

Regards Lee.

Hi, I have a purchased SSL cert running fine and passes tests for my domain, but when open Outlook I get an error for an untrusted cert and it shows the "issued by Centos Web Panel" and not the one I purchased.

Regards Lee.

Hello.

You should replace certificates in the config files.
/etc/postfix/main.cf and /etc/dovecot/dovecot.conf

Thank you very much did the trick.

Do you know if there's anyway for the SSL cert to work with everyone's mail, I'll try to explain.

If I set incoming to mail.myhostname.com then the SSL cert works good

But...

If I set it to mail.theirdomainname.com then the SSL errors (which of course it would cause it's not their domain name, but I don't want to have to purchase an SSL cert for every user), although of course the email works if they except the cert.

Thanks again,
Lee.