New methods for authenticating alternate email addresses

Kaitlin Jocke

SMTP + basic auth to exchange is what has been requested which began to be deprecated in 2021 and was fully disabled for all exchange environments in 2023. This is just a technology that is not usable in any modern environment.

Deprecation of Basic authentication in Exchange Online | Microsoft Learn

Basic Authentication Deprecation in Exchange Online – Time’s Up - Microsoft Community Hub

We'd like to have the option to use SMTP.send delegated permission or mail send via Oauth App

Monica Kraft

@Melvin Gabriel please review this request and provide a response.

Melvin Gabriel

@Monica Kraft We have this in our backlog. We are planning to evaluate the feasibility in Q4 and plan to implement this in 2025 (if feasible). Thanks!