I have a customer that currently has a wildcard SSL certificate for *.domain.com. They recently acquired another company and are starting to moan that when they go to webmail.doman2.com (which points to the same location) they are getting the obvious invalid SSL message.
In an ideal world they would simply use domain2.domain.com and all would be well but they are asking whether we can allow them to carry on using the domain2.com domain with the SSL certificate
I've tried doing some research and it looks like I need an SSL certificate with SAN entries. Is it possible to add these to my current wildcard SSL certificate or would I need to get a new MDC cert with each subdomain added
get *.domain.com with SAN entries for webmail.domain2.com, sharepoint.domain2.com
get MDC SSL key with SAN entries for webmail.domain.com, sharepoint.domain.com etc...., webmail.domain2.com, sharepoint.domain2.com
thanks for any advice on this