Summary
Step-by-step migration — map APIs, switch SMTP, update webhooks, and validate deliverability during the cutover.
Plan the cutover
Run Reloop in parallel before switching DNS or API keys. Send test traffic to seed inboxes and compare delivery rates.
Map SendGrid endpoints to Reloop's REST API or use SMTP relay for drop-in compatibility with existing code.
Update DNS
Replace SendGrid SPF includes with Reloop's. Add new DKIM selectors before removing old ones to avoid a gap in signing.
Rewire webhooks
Reloop webhook payloads differ from SendGrid's. Update your handlers for delivered, bounce, and spam complaint events.
Ready to switch?
Move from SendGrid, Mailgun, or Resend with compatible APIs, clear docs, and a free tier to test before you cut over.