# SendGrid

Twilio SendGrid provides high-volume sending APIs, SMTP relay, and marketing campaigns for established engineering stacks.

Canonical: https://emailchart.co/tools/sendgrid

## Deliverability

SendGrid is battle-tested at scale with IP warmup tools, suppression lists, and detailed event webhooks. Shared IP tiers require active complaint monitoring. Enterprise senders often move to dedicated IPs with Twilio deliverability support.

## Rendering

Marketing Campaigns include a template editor; API senders usually bring their own HTML. SendGrid does not fix rendering issues for you. Pair infrastructure with a dedicated QA process using Litmus or similar tools.

## Strengths

- High-volume API and SMTP
- Mature event webhooks
- Established documentation

Homepage: https://sendgrid.com