Thanks for your response, I appreciate it.
My point is that you can have a Google account without also having a Gmail inbox attached to it. For example, I can go create a brand new Google account right now and use my existing (non Google) email address to create this new Google account. If I do this, I get to use all Google services (Google: Drive, Photos, Maps etc etc) and can even sign into an Android phone, Chrome browser, and Chromebook and have my Google account load onto them. I can also sign into any other website that requires a Google account to work. In this scenario, I just use my non-Google email address as the account name and sign in.
However, ‘Alfred’ seems insistent on a Gmail account existing and I can’t work out why? Why specifically a Gmail account? Surely just a Google account will do? Does Alfred even reference the actual Google Mailbox (Gmail)?
Just to be clear: I’m not trying to log in with a non-Google account. But the Google account I’m trying to login with does NOT have a GMail account attached and the username I login with is a third-party email address.