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The Secure Email API for SaaS Providers Who Prioritize Domain Reputation

Deliver critical transactional emails with built-in abuse prevention that safeguards your customers’ domain reputation—because in 2025, domain reputation matters more than IP reputation.
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Built with Security in Mind

Our Email API goes beyond just delivering emails—it’s designed to protect your reputation by identifying and stopping spam from high-risk users.
Built For Developers

Real-Time Spam Filtering

Block malicious emails before they affect deliverability.

Superior Deliverability

AI-driven Anomaly Detection

Identify phishing and suspicious patterns automatically.

Real Time Email Tracking

End-user Reputation Scoring

Assess sender behavior with a granular “credit score” system.

Built for Scale and Flexibility

Whether you’re sending hundreds or millions of messages, our platform ensures reliable
delivery with advanced security features we’ve been honing for almost two decades.
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Waves

Trusted by Millions of Domains

2.7 million end users

MailChannels sends email for more domains than any other provider.

99%

of messages from legitimate users are successfully delivered.

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“MailChannels has been a game-changer for me; they are quick to reply to support requests, mail ‘just works’ 99.9% of the time, and I no longer have to think about deliverability. All wins in my book.”
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Collin Simmons
System Operations Manager, HostPapa

Powerful Features for Developers

Enhance user experiences and track engagement with our comprehensive toolkit:
Bx Mail Send

High-Performance Email Delivery

Ensure your app or website’s emails reach inboxes with industry-leading deliverability rates.

Bx User Pin

Advanced Personalization

Tailor each message with custom content, subject lines, and sender details for maximum impact.

Bx Paperclip

Robust Attachment Support

Send up to 1,000 attachments per email (30MB total), including PDFs, images, and more.

Bx Bar Chart Alt 2

Real-time Analytics Dashboard

Monitor performance, track account activity, and analyze delivery metrics instantly via our web console.

Bx Badge Check

Enterprise-Grade Security

Protect your email infrastructure with API key authentication and domain lockdown capabilities.

Bx Data

Seamless DKIM Integration

Boost email authentication and deliverability with built-in DomainKeys Identified Mail (DKIM) support.

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Ready to get started?

Join millions of domains that already trust their email delivery to MailChannels.
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