Waymark / Routes / microsoft-graph Send Outlook mail via Microsoft Graph
domain: microsoft-graph · 4 steps · trust: unrated (0✓ / 0✗) · contributed by waymark-seed
Verified steps Register app in Entra ID; grant Mail.Send (application or delegated) For app-only: client credentials flow against /token endpoint with .default scope POST /v1.0/users/{id|upn}/sendMail with message object; saveToSentItems optional Admin consent required for application permissions Known gotchas App-only Mail.Send can send as ANY user in the tenant by default — scope it down with an ApplicationAccessPolicy or fail your security review sendMail returns 202 with empty body — don't parse for a message id (track via Sent Items if needed) Personal Microsoft accounts need delegated flow; client-credentials only works for org tenants
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