Outlook Android app cannot login IMAP email server.

It seems to me that Microsoft are now focussed on Azure Cloud computing and professional services.  The Consumer space is no longer a priority, and when it comes to Mobile they have even less interest.

I can confirm all your analysis of certificates and TLS versions with my ISP, yet OfA still fails to authenticate/connect.  It's a mystery to me why all OfA users are not affected by this problem.

In any event, I gave up on a fix some months ago despite the regular updates.  And I agree that BlueMail, GMail and other email clients work flawlessly with the same configuration.

The absense of any effective support is beyond frustrating.

It seems to me that Microsoft are now focussed on Azure Cloud computing and professional services.  The Consumer space is no longer a priority, and when it comes to Mobile they have even less interest.

I can confirm all your analysis of certificates and TLS versions with my ISP, yet OfA still fails to authenticate/connect.  It's a mystery to me why all OfA users are not affected by this problem.

In any event, I gave up on a fix some months ago despite the regular updates.  And I agree that BlueMail, GMail and other email clients work flawlessly with the same configuration.

The absense of any effective support is beyond frustrating.

I agree with you wholeheartedly. They definitely have less interest in their Mobile apps. Reminds me of their stint with Windows Phones. Started with enthusiasm then they let them die a miserable death.

Earlier in the year, they changed their Outlook App support format/platform and now it's a disaster. 

I once again posted a support request re IMAP and it is now 11 days and they haven't acknowledged my request or replied!

Outlook app support was previously far more effective!

I can recall a support request that got handled quickly, effectively and it reached Level 3 Engineering communicating directly with me.

State of affairs now is So Bad.

I am in the process of migrating to a new Samsung Galaxy. Outlook v4. 2116.3 is running on both phones. All three of my e-mail accounts work on the old phone. My verizon.net account does NOT work on my new phone, no send, no receive. The old phone account info is ******@verizon.net/IMAP. The Description is "work." The new phone account info is ******@verizon.net/Outlook. The Description is ******@verizon.net. The new phone presents many options; the old one, almost none. I configured the old phone two years ago. Are the two phones using different servers? Are they configured different? I don't know how Outlook sets up an account. I don't know how to check/edit server connections/settings, Account Type, Incoming server, Outgoing server, etc. I'll have to find some way to read my verizon.net e-mail when I return my old phone. When Verizon sold its non-mobile stuff to Frontier, I think Yahoo became the Mother of my verizon.net account. Maybe the setup two years ago followed a different path from the one a week ago. It all seemed a bit like magic. So, now what? I'm stuck. Whadoi do? Help

Typical Microsoft replies. No help at all, denying the issue. After trying all I tried 8 other mail clients. 1 worked in seconds, but has annoying advertisements or outragious fee. All the others suck too. My conclusion: it is not the ISP, it is Samsung, Google and Microsoft fighting their battle over the heads of consumers. @#$%&

I've had the same ongoing experience.

Even though I'm a longstanding Microsoft customer, I've given up with OfA due to their inability or lack of interest in fixing this appallingly designed app.  I've now got comfortable using BlueMail, which sets up intelligently, and runs smoothly.