Thanks for that and are you saying you followed the links and did get the official MSFS Alpha download?
The evidence is slowly building that this is genuine after all. Though there are still nagging doubts.
I am thinking I should be able to 'bypass' the email and go to a recognised MS site, login to my account there and see the offer, if it's genuine.
I have logged into XBox Insider Hub but all that is offered there, by way of software is to do with Minecraft!
I think I did apply way back last year to join the development program. But had nothing back and assumed my profile, PC spec wasn't upto what they wanted.
I chucked the offer email, but actually still have the links from it! But I am so uncertain what to do.