I have several domains that have their own IP addresses and secure server certificates (primarily for ecommerce). The owner of one of those domains pointed out to me that if they try to access their webmail using their own domain name - i.e. https://customersdomain.com:20000 rather than https://virtualminlicenseddomain.com:20000 - they get a security warning that the certificate does not belong to the domain. I naively went into customersdomain > Server Configuration > Manage SSL Certificate to try 'Copy to Usermin' , which made https://customersdomain.com:20000 secure , but that broke https://virtualminlicenseddomain.com:20000 .
Is there any way to use the virtual server's certificate for Usermin?