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Stop customer-driven spam before it damages your reputation

MailChannels is the outbound filtering layer for hosting providers — battle-tested at over 100M messages per day, trusted by 25% of the top 100 hosts.

Outgoing mail from your servers

  • info@shop.example.comDelivered
  • hello@studio.example.orgDelivered
  • bob@example.comHeld: spam
  • news@blog.example.netDelivered
Outbound Filtering

Inline detection before mail leaves your network

  • Spam
  • Phishing
  • Malware

Mailbox providers

  • Gmail
  • Microsoft
  • Yahoo

Spam alertbob@example.com is sending spam. Your team is notified.

A compromised account is caught before its mail leaves your network. Everyone else keeps delivering.

Why choose MailChannels?

  • Cut email-delivery support tickets
  • Stay off blocklists
  • Detect compromised customers faster
  • Run email without running an email team

Achieve inbox delivery

Ensure reliable delivery of your customers’ emails.

Maximize inbox delivery

Intelligent IP pools and per-sender reputation tracking keep your customers’ mail flowing to Gmail, Microsoft, and Yahoo.

Catch spam before it leaves your network

Inline detection identifies compromised accounts, phishing campaigns, and spam bursts before they damage your IP reputation.

Cut support ticket volume

Customers like DreamHost have reduced email-delivery tickets from 300 a week to about 10. Rebel reported a 90% drop.

Features

No hardware, no maintenance

Cloud-native SMTP relay. Point your servers at MailChannels and your existing infrastructure stays where it is.

Inline threat detection

Spam, phishing, and malware identified and blocked before messages leave your network.

Self-serve false-positive recovery

Customers resolve their own delivery issues through MailChannels Insights™ — without escalating to your support team.

24/7 Operations coverage

A dedicated support team that knows email abuse, available when you need it.

Detect compromised accounts

Identify spam-like trends in outgoing emails from your servers and applications to spot compromised accounts quickly.
Detect Hacked Hosting
  • Receive monitoring alerts

    Alert monitors notify you of spamming activity within your network.

  • Automate account shutdowns

    Shut down abusive accounts automatically using API webhooks.

  • Improve deliverability of legitimate emails

    Automatically prioritize legitimate emails from well-behaved senders to optimize inbox performance without manual intervention.

Built for shared hosting providers

Improve Deliverability
  • Multiple SMTP credentials per account

    Issue distinct credentials per server so you can revoke compromised access without disrupting the rest of your fleet.

  • Role-based team access

    Set up web console logins with appropriate access levels for support, operations, and admin staff.

  • Operational visibility across your whole fleet

    Log search, analytics, and per-sender behavior in one place.

Monitor your web hosting email at a glance

Quickly resolve issues with powerful log search and analytics tools, reducing support ticket resolution time.
Observability To Web Hosting Email
  • Diagnose email delivery problems with an intuitive UI

    Utilize our user-friendly interface to manage accounts and troubleshoot delivery problems efficiently.

  • Empower the support team

    Enable your support team to search through logs swiftly, providing quick answers to email delivery questions.

  • View sender profiles

    Access detailed sender profiles that include all sent mail, alerts, and metrics to identify spammers instantly.

Find the sender behind every problem

The Top Senders report ranks volume, spam detection, and rejections by sender — so you can identify compromised accounts in seconds, not hours.
Top Senders Report

Your data is safe and secure

MailChannels takes the security of your data and the privacy of your users very seriously. We are committed to providing an environment that is safe, secure, and available to all of our customers worldwide.
  • GDPR compliance

    We are fully committed to complying with GDPR requirements, ensuring the security and privacy of our customers and their users. Learn more

  • SOC2 certification efforts

    We are working towards SOC 2 Type II certification by implementing comprehensive user authentication, robust data integrity controls, and continuous monitoring.

  • Privacy-first infrastructure

    Unlike other email-sending services, we retain message data only as long as necessary to queue and deliver messages, reducing exposure to potential breaches.

Trusted by 25% of the top 100 hosting providers

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What people are saying

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“We went from 300 tickets a week, down to about 10. Overall, the solution just fit and works. We couldn’t be happier with it.”
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Erik nieves photo
Erik Nieves
System Administrator
DreamHost

Talk to a MailChannels expert

Whether you’re protecting a hosting fleet, building a platform, or shipping an agent — tell us what you’re working on and we’ll point you to the right fit.