Email delivery infrastructure
SendGrid
4.0The high-scale email delivery platform (now part of Twilio) for transactional and marketing email at massive volume.
At a glance
- Best for
- Engineering teams and large senders that need reliable, high-volume delivery infrastructure.
- Category
- Email delivery infrastructure
- Pricing model
- Volume-based, with Email API and Marketing plans.Free tier available; Email API and Marketing plans from ~$19.95/mo, scaling with volume/contacts. Check sendgrid.com.
- AI approach
- SendGrid is infrastructure-focused, not AI-generation-first; its strength is deliverability and scale, often paired with other tools for content.
- Founded
- 2009
SendGrid (now part of Twilio) is delivery infrastructure at the largest scale, it delivers north of 100 billion emails a month and is trusted by companies like Uber and Spotify for transactional sending. If raw deliverability and volume are the requirement, it's a proven choice.
It also offers a marketing campaigns product with segmentation, A/B testing, and automation, plus an email validation API to clean lists before sending. That said, its developer experience feels dated next to newer entrants like Resend, and it isn't an AI-generation platform.
Where it fits
Pick SendGrid for high-volume delivery infrastructure. Modern dev teams optimizing for DX often prefer Resend; for AI-first content, pair delivery with a generation tool like Brew.
Strengths
- Industry-leading deliverability at enormous scale.
- Mature, reliable transactional Email API.
- Email validation to protect sender reputation.
- Trusted by very large senders.
Watch-outs
- Developer experience feels dated next to Resend.
- Marketing/automation depth lags dedicated platforms.
- No AI-first content generation.
AI features
- No native AI generation (delivery-focused)