Add Modern Auth support for custom SMTP Servers

Feature: Add Modern Auth support for custom SMTP Servers

Description: For custom SMTP servers, you still only support Basic Auth which has security issues. Please upgrade the system to use Modern Auth which is all Microsoft supports, for good reason.

Use-case: We have access to a SMTP server using Microsoft’s exchange server but cannot use it and need to outsource our SMTP services because you are using a now deprecated authentication method.

Hi @simon.paris,

Welcome to the Auth0 Community!

Here is a related topic on the subject: Interested in Auth0 supporting "Modern Auth" for Office 365 - #7 by jason_rogers