High-volume senders
SendGrid
High-volume sending through your SendGrid account with bounce and complaint feedback.
- Connection
- API key
- Direction
- send
- Plan
- Business or Agency
What works
- Sending via the SendGrid SDK
- Bounce and complaint webhook with ECDSA signature verification
- 10,000 per day default limit
Limitations
- Send-only: replies are not received through SendGrid
- Requires the high-volume providers feature
Requirements
- SendGrid API key
- Business or Agency plan
Source: docs/INTEGRATIONS.md §1.1. Last tested 2026-11-04.
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