Email Sending Service - MailerSend
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MailerSend is a reliable transactional email and SMS delivery service designed for developers and teams needing high-deliverability messaging without infrastructure management.
🚀 Overview
MailerSend is a cloud-based transactional email and SMS platform that enables businesses to send critical messages like invoices, delivery notifications, and password resets reliably and at scale. Built by the experienced team behind MailerLite, who have over 10 years in email delivery, it addresses pain points from their own high-volume sending needs.
The service solves the challenge of ensuring emails reach inboxes with minimal setup, offering superior deliverability, easy integrations, and team collaboration features. It's built for developers who prioritize fast API/SDK implementation, while allowing non-technical team members to handle templates and billing.
MailerSend was created to simplify transactional messaging, remove barriers with intuitive tools, and focus on user-inspired features for long-term scalability across startups, agencies, and enterprises.
✨ Key Features
- Email API & SMTP Relay: Send emails via REST API or SMTP with 7 official SDKs (Node.js, PHP, Python, Ruby, Go, Java) for quick integration and high deliverability.
- Templates & Builders: Pre-built templates or custom designs with drag-and-drop, HTML, or Markdown builders; team members can manage without code.
- Inbound Routing & Extras: Receive/parse incoming emails, IP allowlisting, bulk sends, SMS support, and detailed analytics.
- Team Collaboration: Shared dashboard for billing, templates, and domains; 24/7 expert support.
- Upcoming: Features from public roadmap (check newsroom).
🛠 Tech Stack
- Frontend: Modern web dashboard (technologies not publicly detailed)
- Backend: Proprietary API service
- SDKs: Node.js (TypeScript), PHP, Python, Ruby, Go, Java (open source on GitHub)
- Database: Not specified
- Auth: API tokens, team accounts
- Hosting: Cloud-based (scalable infrastructure)
👥 Who Is This For?
This project is useful for:
- Developers who want to integrate reliable transactional emails and SMS quickly
- Teams looking for collaborative email management without dev dependency
- Indie makers building apps, startups scaling sends, agencies white-labeling
📸 Screenshots / Demo
- Live demo: https://www.mailersend.com (sign up for free trial)
- GitHub: https://github.com/mailersend
🔥 Project Status
- 🟢 Actively building
Last updated: 2026-03-24
❓ FAQ
Is this project free?
Freemium – Free plan offers 3,000 emails/month (up from 500); paid plans start at $5.60/mo for Hobby (5k emails), scaling to Enterprise.
Is the source code available?
SDKs yes — https://github.com/mailersend (MIT licensed, actively maintained) Core service no — proprietary
Can I contribute?
Yes — Fork SDK repos, submit PRs for bug fixes/features. Check individual repo issues; no central guidelines but welcome contributions.
📬 Contact & Links
- Website: https://www.mailersend.com
- GitHub: https://github.com/mailersend
- Twitter/X: https://x.com/MailerSend
- Email: Contact via dashboard/support form
Built with ❤️ and kept warm on WarmIndex.
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