Sending, receiving, and organizing email in Outlook.com
It sounds like the password reset is reaching the second security check, but the text message itself is being blocked or not delivered. This can happen because of phone settings, the mobile carrier, or an unsupported phone number.
Besides the solutions provided by the Q&A Assist, here are some suggestions you can try:
Restart the phone, confirm it can receive ordinary text messages, and make sure its message storage is not full. Check that messages from unknown or short-code numbers are not blocked. Your mobile carrier can also confirm whether Microsoft verification texts are being filtered.
Make sure the number shown on the verification screen ends with the correct digits. Internet-based or VoIP numbers cannot receive Microsoft verification codes, so the registered number must be a regular mobile number.
If a 25-digit Microsoft recovery code was saved when account security was configured, it can be used to regain access and update the password.
If Outlook is still signed in on another browser or device, open the account’s Security settings there and add Microsoft Authenticator or a passkey before signing out.
If this is a work or school Outlook account, contact the organization’s IT administrator. They can reset the account’s multifactor authentication registration.
Thank you for your patience in reading, I hope this information has been helpful to you.
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