Outlook 2016 doesn't accept password or app password

There's no doubt at this point that this is an issue wit Microsoft back-end services, and Microsoft has acknowledged it in a one paragraph article that has a link back to this thread but irresponsibly does not inform people that the thread is now about the server-side issue. 9folders is tricky because the fact that they have a workaround does inform the topic but to your point that discussion, except to say "9folder users can try that setting" does not pull in the direction of pressuring Microsoft to address the underlying issue. Also FYI it's not just third-party apps. I have two properly licensed and paid for Windows 10 workstations with paid freestanding versions of Microsoft office 2021 Pro outlook and even there the issue cannot be avoided. I also suggest that people report it at down detect or under Microsoft 365-Outlook. https://downdetector.com/status/microsoft-365/

Hi Angus -

Kudos to 9Folders for jumping on his quickly and creating a workable solution while the rest of us wait for MS to get their heads out of the sand and fix it properly.

With that being said, 9Folders is not an option for those of us dealing with this issue in Mailbird, Thunderbird, or a myriad of other Windows desktop apps.

My Outlook mail is currently working just swimmingly on my native iPhone Apple Mail app, as well as on my iPad and my work-provided MacBook Pro (also the native mail app), but my personal Windows laptop is having these connectivity issues in both Mailbird as well as the MS Outlook app.

Right now the only way I can stay up to date on my multiple Outlook email accounts is via a web browser, which is awkward and time-consuming.

got my 1st email from nine email i'm happy now man i hated k9 mail meh

So wait, I'd like to understand here.
MSFT keeps and maintains a massive set of user support forums accessible to billions of users globally.
One of those forums in which this issue was first reported (by me regarding O2013).
MSFT recognized the issue on day 2.
MSFT provided an acknowledgement on its own page.
9Folders users (apparently bereft of their own forum in which they can gripe about MSFT,) hijack one of the tracking threads for their own support.
A hijacking which, by the way as blown up in ALL our inboxes (not just 9Folders users).

And then in the process, 9Folders users can't appreciate any of what MSFT brings to them and instead continually throw MSFT under the bus?

Some clients are using older software that is no longer updating and can not rely on developers to create workarounds to fix a Microsoft bug. While it is great for those who are using newer software and have technical expertise, many people using older devices, software, and operating systems can not rely on this. There needs to be a wide industry standard that is followed. This issues does not affect any Gmail accounts, which indicates that it is not a client developer issue but a Microsoft issue that is not following standards.

Absolutely agree with you 100%. It should not have happened in the first place, but since currently the only options appear to be 'wait' or 'find another solution' (which may mean switching to Gmail and leaving Microsoft entirely, or may mean using alternative apps if your hardware can support them) I'm struggling to see what else we can do. 9Folders is only available on mobile platforms (iOS and Android) I believe, and they may be able to advise you if contact them. Clearly that would not help if you are looking for a PC solution and don't have a mobile device which could be used in the interim. None of this is ideal, all of it is a compromise until MS gets its act together, and meanwhile all of us - the users - are left scrabbling about trying to find some means to keep hold of our data until a more permanent solution is provided.