MFA & Verification Issues

How to Remove or Bypass One-Time Passcode for Encrypted Outlook Messages

John Wilson Oct 13, 2026 868 views

Question details

The user wants to remove or bypass the one-time passcode requirement when attempting to open and view encrypted Microsoft 365 emails.

How to Remove or Bypass the One-Time Passcode for Encrypted Outlook Messages

Product: Microsoft Outlook
Device & OS: not provided
Scenario: A recipient is viewing an encrypted Microsoft 365 email via Outlook on the web and is prompted to enter a passcode, while other users can access it without a prompt.
Observed behavior: The system forces the recipient to generate and enter a one-time passcode to decrypt and view the message, preventing direct access.

Before you start

Ensure you have access to the inbox where the encrypted message was delivered. Check if the email address you received the message on is associated with a registered Microsoft or organizational account.

Solution 1Recommended

Sign In to Bypass the Passcode Prompt

Signing directly into your Microsoft or Microsoft 365 account authenticates your session, often bypassing the need for a one-time passcode.

When an encrypted message is sent via Microsoft 365, the system attempts to verify the recipient's identity. If you are not signed into a recognized account, it defaults to sending a one-time passcode. By signing in, you prove your identity directly to the server.

Open the Encrypted Message Link

Open the email containing the secure message in Outlook on the web and click the 'Read the message' link.

Choose to Sign In

On the verification portal page, instead of clicking 'Use a one-time passcode', select the 'Sign in' option.

Enter Your Credentials

Input your Microsoft account or organizational email password. Once authenticated, the encrypted message will open automatically.

Account Requirement: This method only works if the email address receiving the secure message is tied to an active Microsoft, Office 365, or organizational account.

Solution 2

Use an Alternative Verification Method

If the sender requires additional verification, you may be able to use an authenticator app instead of waiting for an emailed passcode.

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Frequently Asked Questions

Why do some users not need a passcode for encrypted Outlook emails?

Users who are already signed into a Microsoft 365 or Outlook.com account typically have their identities automatically verified by their active session, allowing the server to decrypt and display the message without an extra passcode.

Can the sender turn off the one-time passcode requirement?

Yes, the sender or their organization's IT administrator can modify the encryption and protection policies in their Microsoft 365 admin center. However, the recipient has no control over these security policies.

What should I do if the one-time passcode never arrives in my inbox?

First, check your spam or junk email folders. If it is not there, ensure your email provider is not blocking automated emails from Microsoft. You can also return to the encrypted message portal and request a new passcode.

Login & Account Issues