Using Outlook for Android for personal email and calendar management
I have a paid for personal Microsoft account and have the same problem with BlackBerry Hub still. You can sign in with a Work or School account but not a personal account. So I don't think paying for a personal 365 will help this issue.
I logged on to my Microsoft account at the same time Bb asked for a password update and tried to find 'create password app' under security settings as someone else suggested,, but that option was not listed for me underneath the 2FA bit?
I have given up after 2 months and added my personal email to the outlook app alongside my work emails. I was trying to keep my personal email separate. Plus i love the features of BBHub which I've used for many years.