Searched till my fingers bled; gave up and installed the free "Windows Outlook", but it was a mess that Exchange connectivity diagnostic I can't take. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Windows 10 will reach EOS (end of support) on October 14, 2025.

Get email updates

If you have an issue that's not listed in this article, go to mailbox not updating on IMAP the following Microsoft TechNet wiki page. The wiki page lists other known issues and workarounds. Since Microsoft recently demanded OAuth2 authentication, I've been trying everything I found here and at Microsoft, but every 'help' webpage to setup Hotmail and Thunderbird seem badly outdated. If the error you are encountering is not listed, please create a ticket on our Email and Calendar Helppage for assistance. If memory serves me right, modern auth with 2fa, and being a GA and using the account for outlook are known for issues. So, it looks like the version of Outlook that I have won’t play nice with Modern Authentication.

Troubleshoot sign-in issues with Office modern authentication when you use AD FS

Modern authentication (ADAL) with AD FS requires the /adfs/services/trust/13/windowstransport endpoint to be enabled. But primarily I am guessing you are changing the server name. This does not enable any oauth list entry that may be available for that server. Then the entry will be in the list for you to select. I have no issues in Outlook 365 with being a global admin and having modern authentication with multi-factor authentication.

Gmail

• If the error you are encountering is not listed, please create a ticket on our Email and Calendar Help page for assistance.
• To resolve this issue, set up AD FS to use forms-based authentication as the secondary form of authentication.
• Additionally, accessing email through a web client will continue to work, even if an application is having issues.
• App password is not needed so long as you’re using a modem version of Outlook.
• Outlook 2013 supports MA but requires a registry entry as already mentioned.
• They suggested clearing credentials, which I have already tried.
• If it continues to be problematic, you may need to either a.) Remove any related credentials from the users credential manager in Control Panel, it b.) Create a new outlook profile.
• I have confirmed that on two different PCs that are accessing the same mailbox with the same version of Outlook, which is the latest version from Microsoft included within my Office 365 package.

This isdue to Modern Authentication's ability to support multi-factor authentication (such as Duo), which is better for information security. When this change goes into effect, any email application that uses Basic Authentication may not work properly. This article contains information about how to troubleshoot problems that affect the ability to sign in to Microsoft Office 2016 apps and Microsoft Office 2013 apps that are enabled for modern authentication. This article also contains resources for IT administrators to address reports about Active Directory Federation Services (AD FS) issues that are specific to Office for Windows platforms. (a) I hadn't previously set up 2FA on my Microsoft account, and it seemed to require this.

iOSMail

I have confirmed that on two different PCs that are accessing the same mailbox with the same version of Outlook, which is the latest version from Microsoft included within my Office 365 package. If it continues to be problematic, you may need to either a.) Remove any related credentials from the users credential manager in Control Panel, it b.) Create a new outlook profile. We will never ask you to call or text a phone number or share personal information.

Android Mail

Please report suspicious activity using the "Report Abuse" option. We recommendusing Outlook on the web to check your email or consider configuring a supported email client. I have also followed the troubleshooter in outlook where a MS tech gives you suggestions ( very slowly ). They suggested clearing credentials, which I have already mailbox not updating on IMAP tried. Outlook is working on my phone, and I can access everything via the office.com web site. Now I am constantly being asked to enter passwords for two of my Comcast addresses (my Gmail address works fine).

Outlook 365 Won't Prompt for Modern Authentication

(c) Hotmail syncs with my iPhone, and this stopped working; however, I simply had to re-enter my usual Hotmail password on the phone to get it working again. Similar to Mac Mail, UO email accounts set up in iOS Mail application prior to the Modern Auth update will continue to work provided the device is running iOS11 or newer. Outlook 2013 supports MA but requires a registry entry as already mentioned. App password is not needed so long as you’re using a modem version of Outlook. To resolve this issue, set up AD FS to use forms-based authentication as the secondary form of authentication. To do this, follow the appropriate steps for the version that you use.