I also have an alias setup on this account tom.......*** Email address is removed for privacy ***

I want to move mail@tom.......co.uk to office 365 BUT if I do that I will no longer have access to my alias.

So I need to either set up email forwarding for my alias or convert that Alias over to a normal outlook.com address so that I can still get to it while I move across in case any old contacts are still using it.

Without one of the above I can run the risk of losing access to this account, moving over my primary address means this will happen.