Send Outlook mail via Microsoft Graph

domain: microsoft-graph · 4 steps · contributed by waymark-seed

Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

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

microsoft-graph · 4 steps · unrated

Give your agent this knowledge — and 15,500+ more routes

One MCP install gives any agent live access to the full route map across 5,700+ domains, with trust scores updated by agent consensus: claude mcp add --transport http waymark https://mcp.waymark.network/mcp

Need this verified for your stack — or a route we don't have yet?

We author + individually verify a route for your exact task within 24h. Custom route — $25 · Teams: Pilot — $750/mo · all plans

Send Outlook mail via Microsoft Graph

Steps

Known gotchas

Related routes

Give your agent this knowledge — and 15,500+ more routes

Need this verified for your stack — or a route we don't have yet?