Microsoft may limit repeated authentication attempts that are performed by the same user in a short period of time. Waiting ten minutes before trying again will usually resolve this, if not you should contact the IT Service Desk for support. I checked the user specific settings and they are ALL disabled. Try going here and looking a the specific users, check if they are set to disabled.

• A vast community of Microsoft Office365 users that are working together to support the product and others.
• If you don't know, or have forgotten your password, and you don't have access to any of your security info for verification, follow the steps below to recover your account.
• To investigate further, ask an IT administrator to look at the Microsoft Entra sign-in logs.
• If you suspect someone else is trying to access your account, contact your IT administrator.
• The error could be caused by malicious activity, misconfigured MFA settings, or other factors.
• When I switch from company's Teams to client's, I am asked to log in.

I can't sign in after multiple attempts

When you see a message asking you to make sure you can receive a verification code, verify or add new security info. You can skip it for 24 hours at a time, but after seven days from the first notice you'll Outlook Login Issues Troubleshooting have to verify or add new security info before you can sign in again. In those 2 times we have user sign back in via OWA first then Outlook, and also the reverse order. Microsoft works to protect you, your accounts, and our services by assessing the trustworthiness and credibility of every sign-in, sign-up, or customer interaction. 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.

Further help and support

Outlook still keeps prompting ONLY with the old school grey box. It's indicating that the MFA must be done, but nothing's opening/prompting for it. OWA, Windows sign-in, and Outlook mobile solve Office 365 mailbox sync delays app proceed to the MFA registration and/or use.

I've lost access to my security info

Read through the list of the most common causes, and see if any of them apply to you. Security verification messages are sent in the language of your account when the security info email/phone number was added. We won't ask you to verify your security info every time you sign in. Occasionally, we might ask you to check it again—for example, if you haven't signed in for a long while.

Troubleshooting common problems with Multi-Factor Authentication (MFA)

If you don't recognize the phone number or email address offered when trying to get a verification code, check these things. Disconnected and reconnected (no MFA second time round) so will wait an hour and see if this prompts for MFA again. I have mailbox not updating on IMAP 'single sign out' enabled on my saml auth profile.



Log off, log back in again and does not prompt for MFA anymore. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Find solutions to common problems or get help from a support agent. If you are sure the email address is correct, you may need to recover your account.

Question activity

We understand this can be frustrating and disruptive, but here are some of the reasons behind blocks, and guidance on how to overcome them. Will log a tac also as not finding many docs on this issue on pan site atm. However i fear this might only be for BYOD / third parties and not applicable to Azure AD joined devices ie company laptops..