Change MX can't login to office365

[gzaborowski]

Hi 

Today I change my domain MX, CNAME, TXT, SRV records to point office365 servers. After propagating records I cannot login to my office365 account using this login xxx@xxxx.onmicrosoft.com or xxx@mydomain.com.

What is the problem, password or login ?

kind regards 

[#2]

@gzaborowski just changing your dns records won't break an account, it has to be something had to be touched on your AD side of things with the account. hopefully you have a cloud only admin account you can access since that's where I would try to login, but just changing DNS shouldn't effect it, unless you had some form of federation setup using dns for something.