I've just used Migration Assistant to move from a macbook pro to macbook. Everything seems to have transferred across. However I do have an issue with Mail. I do have two email accounts on mail, the key one i need access to is an outlook.office365 account. I can access it through Safari so I'm not completely lost. However on mail, all I get is popup for both accounts 'Mail password required' and no access. I dont remember the passwords to either (Ive tried a few!) , nor can I see them in keychain. Anyone had this problem?