1
Support OAuth2 (XOAUTH2) or Microsoft Graph for email notifications
Feedback / Product Ideas and Feature Requests / General
Canary email notifications only support basic SMTP auth (username and password over 587/SSL). That's becoming a problem for anyone on Microsoft 365.
- Microsoft is shutting off SMTP basic auth and pushing hard to get everyone off it
"New tenants created after December 2026: SMTP AUTH Basic Authentication will be unavailable by default. OAuth will be the supported authentication method."
Right now the only path is standing up an SMTP relay or a third-party mail service.
Some ideas:
- OAuth2 / XOAUTH2 for SMTP (app registration with client ID, tenant ID, and secret or certificate)
- Sending through the Microsoft Graph sendMail API
- Custom SMTP auth mode option so we're not locked to Basic
Print this page