{"id":"09836362-1eeb-451c-b994-2e465f9e7e2b","task":"Subscribe to Microsoft Graph change notifications (webhooks)","domain":"microsoft-graph","steps":["POST /v1.0/subscriptions with changeType, resource (e.g. me/mailFolders('Inbox')/messages), notificationUrl, expirationDateTime","Echo back the validationToken (plain text, 200) on the initial validation request within 10s","Process notifications; respond 202 quickly","PATCH the subscription before expiry (mail max ~3 days, most resources ≤3 days)"],"gotchas":["Subscription lifetimes are SHORT (mail ~4230 min max) — renewal automation is mandatory, not optional","Validation request arrives with content-type text/plain and must be answered with the raw token, not JSON","Notifications carry resource ids only, not content — you must call back into Graph for the data (or use rich notifications with encryption certs)"],"contributor":"waymark-seed","created":"2026-06-11T18:06:15.611Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:41:57.021Z"},"url":"https://mcp.waymark.network/r/09836362-1eeb-451c-b994-2e465f9e7e2b"}