I used Outlook for the web from O365 to access my old BTInternet account. Worked for years, worked on my Android phone, and then earlier this month I get a message saying that Outlook has failed to pickup emails and I needed to authenticate. I don't think I had my phone setup as 2fA for my personal O365. I'm using my personal office on my works machine to access personal email from the browser. Long story short is that the 2FA failed and it's become apparent that I haven't picked up email since.
Help suggests deleting accounts and reloading. I thought I had found the right place in the new menu system but it turns out I was just deleting aliases and re-establishing them. - It never asked any email account details (like the password). I used to specify POP/IMAP when the email account was established with an older version, but the new menus allow you to say use POP/IMAP or not, and selecting "view details" just takes you to a help page about IMAP settings, but not a settings page where you can review/change/verify like the old File:Accounts tab. I can't see anywhere where you can add the email account details other than the email address itself. In fact I can't see where you specify an email account to use beyond the alias.
As part of my troubleshooting, I went to the BT site to check there were emails to download. There were, but I've used Outlook so long to access the emails that I's forgotten the password and had to reset it. Reading about the new authentication and the need to pass extra tokens, I've setup 2FA on the BT account, but of course that makes it different to the one Outlook "remembers" and I can't change it back.
Have a I just been "Boy looking" on the new Outlook Menu system and missed where you specify which email account Outlook is supposed to use? It's a bit fundamental for an email client to have an email to use, so I've looked at every menu 3 times, but I still can't see where you simply "Add an account" like you used to be able to. There is an "Add GMail" button on the LHS, but it's greyed out, and only offers to upload the new Outlook, but maybe you need a desktop version to be able to load email accounts. I use the desktop version for work email (I prefer the higher functions of the full app) and it can access my email, but only by loading it from scratch, and without the folders I've built in O365 over the past 3 years.
This all seems a bit mad. My desktop Outlook accesses 3 different email accounts for work. The Web version doesn't seem to be able to access anything other than the one it presumes is part of the Win365 ID. A bit naff really. MS seems to have really dropped the ball on this one and is upsetting millions of users, not just 1000s, all in the name of security.