The new fantastic built-in Letsencrypt feature works allright for me (after manually uploading the Let's Encrypt Authority X3 cert as a CA Certificate).
I have a question though: Rather than using different Letsencrypt certs for each Virtual Server, is it possible to use a SAN cert that will cover them all? The reason I'm asking is that having one SAN cert rather than using SNI increases compatibility towards various OS versions and browsers.
Ofc, I tried to do it right away, but it didn't work out. I went to the "Let's Encrypt" tab and added a couple of domain names that are hosted on the same Virtualmin server and it failed to generate and install the Letsencrypt cert. Probably because the validation of the additional domains/Virtual Servers failed.
Can anyone come up with a nice solution/workaround to make this work?