I had a scenario where I was using a single name SSL certificate which was setup for mail.domain.test.  I needed to get autodiscover to work for this domain name.  The DNS host was Godaddy.

I configured an SRV record as follows:

The target pointed to the certificate name.  EG: mail.domain.test.  This allowed the https://testconnectivity.microsoft.com test to go through.

References:

https://au.godaddy.com/help/outlook-windows-manually-add-autodiscover-srv-record-20066