Multiple DNS zones with SAN certificate

[alexgagnon]

Hi there,

I'm currently using Azure for my public DNS, and I'm trying to figure out if I can generate a SAN certificate with DNS challenge, but whose domains are actually spread across multiple zones. For example:

blog.example.com, *.blog.example.com -> one zone
clients.example.com, *.clients.example.com -> another zone

I don't have authority to manage everything under example.com, which is why we have multiple zones.

It looks like AZURE_ZONE_NAME only allows a single value though. Is there a way to accomplish this?