SendGrid Email API and Email Marketing Campaigns | Twilio
SendGrid's trusted email API and marketing campaigns platform is now available through Twilio.com.
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SendGrid is a scalable cloud-based platform for delivering transactional and marketing emails at scale using its Email API, SMTP relay, and campaign tools, designed for developers, marketers, and businesses.
🚀 Overview
SendGrid is a leading email delivery service that enables reliable sending of transactional and marketing emails, processing over 100 billion emails monthly with exceptional deliverability rates. It solves key challenges like poor inbox placement, scalability limitations, spam filtering, and lack of detailed analytics that plague traditional email solutions.
The platform is built for developers integrating emails into applications (e.g., notifications, receipts) and marketers running targeted campaigns.
SendGrid was founded in 2009 to simplify email infrastructure, allowing teams to focus on engagement rather than delivery headaches, and was acquired by Twilio in 2018 to enhance its communication ecosystem.
✨ Key Features
- Email API & SMTP Relay: Simple integration for sending high-volume emails with 99%+ deliverability, real-time feedback via webhooks.
- Marketing Campaigns: Drag-and-drop editor, automation workflows, A/B testing, contact segmentation, and list management.
- Analytics & Insights: Real-time reporting, bounce/suppression management, email validation, engagement scoring.
- Advanced Tools: Dynamic templates, dedicated IPs, SSO, subusers, event webhooks (Pro+ plans).
🛠 Tech Stack
- Frontend: React, Tailwind CSS (dashboard)
- Backend: Node.js, REST API v3, SMTP
- Database: Proprietary (PostgreSQL-like for analytics)
- Auth: API Keys, OAuth, SSO (Pro+)
- Hosting: Twilio Cloud, AWS infrastructure
👥 Who Is This For?
This project is useful for:
- Developers who want to integrate reliable transactional emails into apps
- Marketers looking for scalable campaign tools and analytics
- Businesses and teams handling customer communications at scale
📸 Screenshots / Demo
- Live demo: https://sendgrid.com
- GitHub: https://github.com/sendgrid
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Freemium — Forever free plan with 100 emails/day (~3,000/month), analytics, and basic features. Paid plans from $19.95/mo for higher volume and pro features.
Is the source code available?
Yes — https://github.com/sendgrid (open-source client libraries for 10+ languages, API specs) Core platform is proprietary.
Can I contribute?
Yes — Open issues/PRs on GitHub repos for libraries. Provide feedback via support tickets or community forums.
📬 Contact & Links
- Website: https://sendgrid.com
- GitHub: https://github.com/sendgrid
- Twitter/X: https://x.com/sendgrid
- Email: support@sendgrid.com
Built with ❤️ and kept warm on WarmIndex.
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