Microsoft Mail Bridge

Expose Microsoft-style token and `sendMail` endpoints from your own application.

This service validates one bridge tenant id, client id, and client secret from your application configuration, issues access tokens from /{tenant}/oauth2/v2.0/token, accepts bearer-authenticated /v1.0/users/{email}/sendMail requests, forwards them to Microsoft Graph, and keeps an audit log. Admin access is available at /admin/login. Public API docs and tester are available at /docs.

Proxy Auth Downstream apps request tokens from POST /{tenant}/oauth2/v2.0/token using the bridge tenant id, client id, and client secret.

Graph-like Mail Send Apps call POST /v1.0/users/{email}/sendMail with a bearer token and Graph-style JSON payload, but only verified sender emails are allowed.

Admin Control Panel Manage verified sender mailboxes, inspect delivery logs, and publish the bridge settings to downstream applications.