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Transactional email,
without the complexity

Mailer is a self-hosted email delivery API. Send transactional emails from your own domains, track delivery in real time, and manage everything from one dashboard.

Go to dashboard

Domain Management

Add and verify your sending domains. We guide you through the DNS setup for SPF and DKIM records.

API Keys

Create and manage API keys to authenticate your application when sending emails through the API.

Message Tracking

Track every email you send — delivery status, opens, clicks, bounces, and the full event timeline.

Analytics

Monitor your sending volume and delivery rates with an overview of key metrics at a glance.