IF this is somewhere within this forum I apologize. I have tried to search for what I need, but I just can't seem to find it. I have a single server that has multiple IP addresses. Each IP address is associated with a domain. Everything is working perfectly except one thing that I just can't seem to figure out. In the eMail Domain Section I have 4 domains that all host email addresses. When you go to mail.domain1.com/smtp.domain1.com OR mail.domain2.ca/smtp.domain2.ca OR any other domain entered here the SSL Certificate that is being presented is the one that ISPConfig uses on a separate domain ( vps.domain1.com ) The vps certificate is only for ISPConfig since nothing else uses the "vps" DNS record. I did create websites for --> mail.domain1.com and mail.domain2.ca and all other domains and checked the Lets Encrypt and SSL boxes to generate the SSL Certificates. I then created smtp.domain1.com & smtp.domain2.ca as an alias with the corresponding mail.domain* as the parent for each alias The certificates have been verified to be active with the help of https://www.sslshopper.com/ssl-checker.html This is the first time I have had multiple domains being used for the email server. I did figure out how to setup the SSL for the main mail domain by using ln -s to the certificates in the domains ssl folder, but that doesn't help me for the other email domains. Thanks in advance for the help & I apologize if it is something simple that I am missing.
Have a look here: https://doc.dovecot.org/2.3/configu..._ssl_configuration/#multiple-ssl-certificates
Both looked great, but I went the route that Till posted. Thank you both very much. It is greatly appreciated