Email delivery that
never fails you
Stop worrying about email deliverability. SendLib's AI-powered infrastructure ensures your transactional emails reach the inbox every time, with transparent insights and dedicated success support.
✓ No setup fees • ✓ Free pilot program • ✓ Dedicated support
Built for developers who care about delivery
SendLib isn't just another email service. We're the reliable partner that ensures your transactional emails reach your users when it matters most.
AI-Powered Warmup
Smart algorithms automatically warm up your sending reputation to maximize deliverability from day one.
Transparent Deliverability
Real-time insights into your email performance with detailed analytics and deliverability metrics.
Outcome-Based Success
Dedicated customer success team focused on your actual business outcomes, not just email volume.
Developer-First API
RESTful API with comprehensive documentation and webhooks for seamless integration. SDKs coming soon.
Enterprise Security
End-to-end encryption, GDPR compliance, and enterprise-grade security built from the ground up.
99.9% Uptime SLA
Reliable infrastructure with guaranteed uptime and redundancy across multiple regions.
Integration that takes minutes, not days
Get started with SendLib in under 2 minutes. Our simple RESTful API makes integration seamless for any tech stack, with comprehensive SDKs coming soon.
Built for the next generation of startups
We're in private beta with select startups who need reliable email delivery without the enterprise complexity
Our AI analyzes your sending patterns, domain reputation, and recipient engagement to gradually increase your sending volume. This ensures your emails build trust with ISPs and maintain high deliverability from the start.
SendLib focuses on actual delivery outcomes, not just sending emails. We provide transparent deliverability metrics, proactive reputation monitoring, and outcome-based customer success to ensure your emails reach the inbox.
Most developers integrate SendLib in under 5 minutes using our RESTful API and comprehensive SDKs. We provide detailed documentation, code examples, and live support to get you started immediately.
Yes, SendLib is SOC 2 Type II compliant with end-to-end encryption, GDPR compliance, and enterprise-grade security. We also offer dedicated IP pools and custom domain authentication for enterprise customers.
Questions? We've got answers
Learn more about SendLib's approach to email delivery, our AI-powered features, and how we ensure your emails reach their destination reliably.
Loved by developers worldwide
Join thousands of developers who trust SendLib for their mission-critical email delivery
Finally, an email API that just works
SendLib's AI-powered warmup got us to 98% deliverability within days. The transparent analytics help us optimize our campaigns in real-time. Best migration decision we've made.
Sarah Chen
CTO @ TechFlow
Integration was incredibly smooth
Migrated our entire transactional email system in an afternoon. The documentation is excellent, and their customer success team proactively helped optimize our delivery rates.
Marcus Rodriguez
Lead Developer @ StartupXYZ
Deliverability that scales with growth
We went from 10K to 1M emails per month without any delivery issues. SendLib's infrastructure scales seamlessly, and their outcome-based approach aligns perfectly with our business goals.
Emily Watson
Engineering Manager @ ScaleUp
The transparency is game-changing
Real-time deliverability insights help us catch issues before they impact users. The detailed analytics and proactive monitoring have eliminated our email delivery concerns completely.
David Kim
Product Manager @ InnovateApp
Ready to never worry about email delivery again?
Join our private beta and be among the first startups to experience truly reliable email delivery. Limited spots available for early access.