Please do 2-Factor Authentication if asked to and you should be able to login You will get the activation prompt and then If account is already added you will see the password prompt for app and ADAL again. Search 'Exchange' under Login -> All Items and delete everythingĦ.
Make sure you quite Outlook and other Office apps. Regarding the credential pop-ups issue, please perform the steps below and see if the login issue can be resolved.ġ. Please check if the issue persists if you Your Outlook is switched to work offline by chance. Please firstly check the network connectivity on your machine and see if it’s OK. Please correct me if anything is misunderstood.Īs the issue started to occur after an Internet outage, the issue may be related to the factor. In addition, Outlook consistently ask for your Office 365 for Business account and password but it never connect. After a recent Internet outage, you can no longer send and receivedĮmails for all these accounts.
Firstly, I’d like to confirm the situation for a better understanding: You configured an Office 365 for Business account and some IMAP accounts on your Outlook 2016 for Mac.