Scan to Email Fix

Brother scan to email with Microsoft 365

Some Brother printers support OAuth 2.0 for Microsoft 365, sometimes after a firmware update. Brother says plainly: if your model isn't on its support list, it doesn't support OAuth.

Last verified: November 14, 2026

The errors you'll see

Brother machines usually show Authentication Error or Receiving Error. The same change also affects Internet Fax, email reports and email notifications.

Step 1: Check your model

Find your model on Brother's OAuth 2.0 Authentication Support Statement. It lists inkjet and laser models and says, for each, whether OAuth already works, needs a firmware update that's available, or needs one that's still coming.

Step 2: Sign in with OAuth

  1. Type the printer's IP address into a browser to open Web Based Management, and log in.
  2. Open the email or OAuth 2.0 authentication settings (names vary by model).
  3. In the Email Address field, enter the mailbox the printer will send from.
  4. Note the authentication code shown and click Sign in.
  5. Enter the code on the Microsoft page, click Next and finish signing in.
  6. Close that tab, return to Web Based Management, and send a test scan.

Steps from Brother's FAQ ("Authentication Error" with Microsoft Exchange Online).

If your model can't use OAuth

Use one of the other fixes on the main guide: Microsoft's direct send (internal recipients only), Microsoft's SMTP relay connector (needs a static public IP), or a third-party relay service. As a short-term stopgap, your Microsoft 365 admin can turn password sign-in back on after the December switch-off.

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