twilio-sendgrid-webhooks
Track email delivery and engagement via SendGrid Event Webhooks. Covers all 11 event types (delivery + engagement), webhook handler implementation, ECDSA signature verification, batched event processing, and common debugging patterns. Use when building SendGrid delivery tracking, engagement analytics, or bounce handling. Requires a SendGrid API key (SG.-prefix) — not applicable to the Twilio Email API (comms.twilio.com).
Install
With your agent
Install OMGSkills skill "twilio/ai:skills/sendgrid/twilio-sendgrid-webhooks" into this agent's normal skills directory: call the OMGSkills MCP get_install_plan tool for your agent and run the script it returns (it installs only the pinned commit and verifies SKILL.md), and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/twilio/ai /tmp/ai && ln -s /tmp/ai/skills/sendgrid/twilio-sendgrid-webhooks ~/.claude/skills/twilio-sendgrid-webhooksFrom README
Overview The Mail Send API returns 202 Accepted (queued) — it does NOT confirm delivery. To know what happened to an email, use Event Webhooks. Enable: SendGrid Console > Settings > Mail Settings > Event Notification --- Event Types Delivery Events | Event | Meaning | |-------|---------| | processed | SendGrid accepted and will attempt delivery | | deferred | Temporary failure — SendGrid will retry | | delivered | Recipient's mail server accepted the message | | bounce | Permanent failure — address invalid or rejected | | dropped | SendGrid will not deliver (suppression, invalid, spam) | Engagement Events | Event | Meaning | |-------|---------| | open | Recipient opened (pixel-based — unreliable) | | click | Recipient clicked a tracked link | | spamreport | Recipient marked as spam | | unsubscribe | Recipient clicked unsubscribe link | | groupunsubscribe | Recipient unsubscribed from ASM group | | groupresubscribe | Recipient re-subscribed to ASM group | --- Webhook Handler Critical...