When I pulled apart the .phar file, it has v1.0 manually set in the configuration. I saw the same thing but I just changed it to v2.0. When I tested I used an in-private window and logged in with my login to the osTicket but used the O365 account for the e-mail address, it still gives the error message so I think there's something wrong with the checks, plus it doesn't even say what the wrong e-mail address is in the error. Like others, it shows successful on the Azure side.