By Mark Vruno
Publication Date: 2026-11-09 17:58:00
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MOM blog updated November 2026. Originally published February 2026.
What to do before your copier stops sending?
The short answer: At the end of December 2026, Microsoft will turn off Basic Authentication for SMTP AUTH by default in Microsoft 365. If your copier or MFP scans to email with a saved username and password, scan-to-email may stop working. To keep it running, switch the device to OAuth 2.0, route it through a Microsoft 365 SMTP relay, or move to a scanning service that doesn’t use SMTP. Modern Office Methods can check your devices and tell you which option fits.
What’s Changing
For years, most copiers and MFPs have sent scanned documents through Microsoft 365 the same way: the device signs in to smtp.office365.com with a username and password saved on the device. That method is called Basic Authentication.
Microsoft is retiring it. The replacement is OAuth 2.0, also called Modern Authentication. Instead of keeping a password on the device, OAuth uses…
