Hello, I have ISPConfig 3.2.4 that is using a cert for my server name mail.mydomain.com. This got set up automatically. I've started hosting mail for a friend as well, and they would prefer to use an MX record with their own domain, such as mail.newdomain.com I know how to use a domain alias for websites but can't seem to find how to make it work for the mail server. Is there an easy way to add a Subject Alternative Name to this cert?
Found this page actually and got the new link working https://forum.howtoforge.com/thread...d-lets-encrypt-ssl-certificate-certbot.86372/
