MailChannels

MailChannels is an email delivery and outbound filtering service for platforms, hosting providers, and multi-tenant applications that send mail on behalf of their customers. It addresses the risk that a single compromised or abusive sender can damage shared sending reputation, trigger blocklisting, and affect delivery for other senders on the same infrastructure.

The service offers two products: Outbound Filtering and Email API. Outbound Filtering provides a cloud-native SMTP relay with inline spam, phishing, and malware detection, per-sender reputation tracking, compromised account detection, automated account shutdowns via API webhooks, monitoring alerts, and a web console with log search, analytics, sender profiles, and role-based access. It integrates via SMTP, API, webhooks, and a cPanel plugin, and includes AI-based phishing detection, a Top Senders report, and self-serve false-positive recovery through MailChannels Insights. Email API supports transactional sending over REST API and SMTP, with email templates, attachments, sub-accounts, suppression lists, delivery webhooks, open and click tracking, and SPF, DKIM, and DMARC deliverability support.

Outbound Filtering is aimed at hosting providers and is packaged in Starter, Standard, and Enterprise editions, scaled by monthly email volume and console user count, with annual subscription discounts available. Email API targets platforms and developers, with a free plan for testing and small projects, volume-based paid tiers for production workloads, and a custom tier for high-volume senders.