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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.

Protect Your Customers’ Reputation with a Smarter Email API

Traditional email APIs only deliver messages—MailChannels goes further, actively preventing abusive users from harming your customers’ domain reputation.
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Real-Time Spam Filtering

Block malicious emails before they affect deliverability by scanning against known spam signatures and threat intelligence.

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AI-driven Anomaly Detection

Catch phishing and suspicious activity automatically with machine learning models that identify abnormal sending patterns.

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End-user reputation scoring

Assess sender behavior with a granular “credit score” system that tracks individual user behavior.

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Policy-driven compliance

Enforce CAN-SPAM, GDPR, and other email best practices.

Granular Control Without Disrupting Your Business

Unlike other email services that suspend entire accounts for a single bad sender, MailChannels isolates problematic users while ensuring your legitimate messages continue flowing.
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Per-user monitoring

Track reputation at the individual sender level.

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Instant abuse alerts

Receive detailed reports on suspicious activity.

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Automated enforcement

Apply customizable rules to mitigate risks before they escalate.

Why Domain Reputation Matters in 2025

Today, domain reputation is the #1 factor influencing email deliverability.
While our IP pool remains pristine (81% rated “trusted” by Cisco Talos),
we focus on protecting your customers’ domain reputation–
the asset that determines the inbox placement.
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MailChannels protects more domains
from email abuse than any other provider

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Deliverability for legitimate senders
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Zero latency real-time abuse monitoring to detect threats
2.7M
End-users protected across thousands of SaaS platforms

Advanced Security Features
for Multi-Tenant Environments

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Domain Authentication Enforcement

Ensure proper SPF, DKIM, and DMARC configuration to prevent spoofing and unauthorized mail.

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Behavioural Analysis & Traffic Shaping

Monitor sending patterns and throttle suspicious activity before it impacts reputation.

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Phishing & Malware Detection

Stop outbound phishing attempts and prevent malware from reaching inboxes.

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Automated Abuse Enforcement

Set thresholds that automatically restrict bad senders before they harm deliverability.

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Integrated Threat Intelligence

Leverage global reputation services and feedback loops to proactively block risky messages.

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Audit Trails and Compliance Reports

Maintain detailed logging and reports to satisfy security audits and demonstrate compliance controls to enterprise customers.

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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

Start Protecting Your Customers’
Domain Reputation Today

One compromised sender can permanently damage domain reputation.
Join companies that trust MailChannels to safeguard their email.