I have had a Gmail account for a number of years, but now, for no apparent reason Google regards my abbreviated email address as being different from the longer original.... Eg., @googlemail V @gmail.... Has anyone else stumbled on this? -It may pertain specifically to my security settings in MacOS 10+
Because of this I cannot sign in to Google Drive without getting "Google failed authentication"
When I first got mine they offered gmail.com then they tried to introduce a .co.uk, but someone had that domain name. Thus they introduced googlemail.co.uk
A few years later they introduced the option to change googlemail to gmail.