Hi everyone it seems like a lot of people have had this issue am I right?

Well I solved it so I wanted to share what worked for me: to summarize set it up as an 'other' account and in IMAP host enter 'outlook.office365.com' and in SMTP enter 'smtp.office365.com'

Aug 01, 2017 Entering credentials just makes the prompt show again, only canceling it and clicking the 'needs password' text in the bottom of Outlook's main window allows them to keep working for a while. So far 15 out of our 42 active Windows Outlook users have been impacted (not counting Mac Outlook, or holiday users).

Select the login keychain entry in the top left navigator pane, then from the File menu, choose Lock Keychain 'login'. Launch any Office app, such as Word. You'll receive a prompt requesting permissions to access the keychain. Enter your Mac admin account password and click OK.
May 07, 2020 If the Keychain Access program is corrupted, then whenever the Outlook user is trying to connect with O365 on Mac platform, the password problem arises. As a result, Outlook 2016 for Mac keeps asking for password of Office 365 account. To troubleshoot this problem, users can follow the below instructions.
You can see @LordAlukard’s reply and clear the cache first and re-open Outlook for Mac client. Moreover, it is suggested to download Outlook Reset Preferences tool and follow the prompts to reset the preferences. If the issue persists, please contact in-app support for further help, as we have dedicated support team for this kind of problems.
Outlook Keeps Asking for Password (Office 365) Outlook is the most widely used email client worldwide and definitely one of the most convenient email clients. However this convenience does not come without some issues here and there.

I've added steps below on how do it for those that need need further instruction.

Delete the mail account from your phone

Outlook 365 Email Keeps Asking For Password Mac Air

Go back into your settings and add account
Add it as 'other', then click 'add mail account'
Enter in your name email, password, and whatever nickname you'd like to give it
under IMAP incoming mail server for host name 'outlook.office365.com' then of course your email and password
under outgoing mail servers 'smtp.office365.com', I left the username and password there blank since it says optional
Save and done!

This worked for me, hope this helps 🙂

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Outlook 365 Keeps Asking For Password Mac

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Posted on Jul 12, 2018 10:33 AM