Show DEV: MisarMail — Self-Hosted Email Infrastructure (Transactional, Marketing, Bulk)

What I Built

MisarMail is a self-hosted email infrastructure platform for sending transactional, marketing, and bulk email — without paying SendGrid, Mailgun, or Resend.

URL: https://mail.misar.io

Why I Built It

Every product I ship needs email — welcome emails, password resets, newsletters, bulk campaigns. Third-party email services add up fast. I wanted full control, zero per-email cost, and a simple API I own.

How It Works

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  REST API — POST /api/v1/send with your payload, done


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  SMTP relay — drop-in replacement for any SMTP config


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  Bounce handling — automatic bounce and complaint processing


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  Delivery tracking — opens, clicks, delivery status


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  Multi-domain — send from multiple domains and identities

Tech Stack

Self-hosted on a Hetzner VPS via Coolify. Mailcow under the hood for SMTP, custom API layer on top.

Try It

https://mail.misar.io

No third-party email spend. Full delivery control. API-first.