# SendGrid

> High-volume transactional + marketing infrastructure.

SendGrid (a Twilio company) is a long-standing email infrastructure provider built for high-volume and transactional sending, with a robust API, deliverability tooling, email validation, and marketing campaign features layered on top.

## Pros

- Proven at large scale
- Both transactional and marketing in one
- Mature deliverability tooling

## Cons

- Developer experience feels dated vs. Resend
- Documentation can be hard to navigate
- Marketing UI is less modern

**Canonical:** https://emailcanary.co/tools/sendgrid

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