Blogs
on January 27, 2026
Content
Also, make sure they’re using apps that support 2FA—older clients sometimes skip the prompt. You can check their sign-in logs in Azure AD to see what’s going on during their login attempts. Microsoft Entra multifactor authentication detects unusual activity like repeated sign-in attempts, and may prevent additional attempts to counter security threats. If you've mistakenly made many sign-in attempts, wait until you can try again, or use a different MFA method for sign-in.
No prompt for MFA is happening in 365 apps Outlook desktop. OWA says MFA is satisfied. ONE user only.
We understand this can be frustrating and disruptive, but here are some of the reasons behind blocks, and guidance on how to overcome them.We checked with Word that the account was connected–it was and the we opened Outlook and it immediately connected.If you are still not able to add your account, please contact Support for personal accounts or reach out to your IT admin for work/school accounts.Waiting ten minutes before trying again will usually resolve this, if not you should contact the IT Service Desk for support.There doesn’t appear to be any pattern to the issue occurring or the problem being limited to any specific computer or user.Authenticator push notifications can include your location to provide better sign-in security.
The most common cause of failed imports is incorrect formatting in the CSV file. One of the following steps could help you troubleshoot the issue. Authenticator will deny authentications where there is a discrepancy between GPS-reported locations. You can resolve problems with Microsoft Authenticator by checking the tips in this article and reviewing some of the known errors. We understand this can be frustrating and disruptive, but here are some of the reasons behind blocks, and guidance on how to overcome them. @Microsoft, given the level of attention the community has given this issue, I hope you come up with an update soon.
Find solutions to common problems with MFA if you are having trouble approving your sign in requests
It happened right before lunch, locked my machine, went out for lunch, came back, and logged in, this time successfully. Which to me sounds like the issue is service side, not client side. Office 2016 is already Modern Authentication aware so APP passwords are not required. Native IOS and Android Mail apps will require the APP password or users can use Outlook for IOS/Android which is Modern Auth aware. Authenticator requires your mobile device clock to accurately report your local time.
I can't sign in after multiple attempts
If your actions trigger alerts or deviate significantly from your typical patterns, we might interpret it as potentially risky behavior, leading to temporary block where we won't send codes. There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you. The user had Office 2015 and Office 2016 credentials and Teams credentials that we deleted. We checked with Word that the inbox repair tool alternative account was connected–it was and the we opened Outlook and it immediately connected.
You are using Email Token Multi-Factor Authentication
Unfortunately when the problem occurs they’ve asked us to ring straight away but of course you can never get them instantly (we’ve just been given someone’s direct number now). To make a long story short we’ve since been asked to collect Outlook logs and install Fiddler to capture additional logging. We strongly recommend letting your organization's Help desk know if your phone was lost or stolen. After your settings are cleared, you'll be prompted to register for two-factor verification the next time you sign in.
We too have been seeing this more and more, all W10 on O365, although we use Okta as our MFA. I feel like this issue is getting progressively worse as the fix used to be clearing the credential manager or if it was bad uninstalling the entire Office Suite, clearing all traces and reinstalling and now we are seeing nothing helping resolve Outlook not sending emails fast it. Have looked all over and people have all sorts of possible solutions, but nothing we found to resolve the issue and get a new issue daily and just keep going through until it eventually works.
Verification problems
Please contact Support for personal accounts or reach out to your IT admin for work/school accounts. Authenticator may list inactive accounts that are created by other applications that use Authenticator for single sign-on support. These inactive accounts don't need any management and can be safely ignored.
Troubleshooting common problems with Multi-Factor Authentication (MFA)
In the instances that this occurs the effected user is not new to MFA but has been running it for at least months. The problem appears to randomly affect users (I’ve had it affect myself once too), and the only solution appears to one of (or a combination of) the options in the OP. Out of 140 staff the problem seems to occur once every 2-3 weeks on average. In this case are you saying that there is a password prompt for the users credentials? online Outlook email repair utility Clear the Windows Credential manager or recreate the users Outlook profile.