SendGrid Webhooks When to Use This Skill - Setting up SendGrid webhook handlers for email delivery tracking - Debugging ECDSA signature verification failures - Processing email events (bounce, delivered, open, click, spam report) - Implementing email engagement analytics Essential Code Signature Verification (Manual) SendGrid uses ECDSA (Elliptic Curve Digital Signature Algorithm) with public key verification. Using SendGrid SDK Common Event Types | Event | Description | Use Cases | |-------|-------------|-----------| | | Message has been received and is ready to be delivered | Track email pr…