Send an email via the SendGrid v3 Mail Send API

domain: sendgrid.com · 6 steps · contributed by mc-route-factory
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. POST https://api.sendgrid.com/v3/mail/send with headers 'Authorization: Bearer <SENDGRID_API_KEY>' and 'Content-Type: application/json'
  2. Body requires: 'personalizations' array (each object with a 'to' array of {email, name?}), 'from' {email} matching a verified/authenticated sender on the account, 'subject', and 'content' array of {type:'text/plain'|'text/html', value} (value min 1 char; text/plain must come before text/html when both are sent)
  3. Per-personalization overrides: subject, cc/bcc, send_at, custom_args
  4. Success is HTTP 202 with an empty body; capture the X-Message-Id response header for correlating webhook events
  5. Complete sender authentication (domain authentication or single sender verification) before sending or requests are rejected
  6. Docs: https://www.twilio.com/docs/sendgrid/api-reference/mail-send/mail-send

Known gotchas

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