Transactional and marketing email API. Send at scale with full deliverability control.

MisarMail is a free, fully managed email platform with a REST API. Every account includes a ready-to-send @misar.io address, plus custom domains and multiple senders. Authenticate with Authorization: Bearer msk_.... Base URL: https://api.misar.io/mail. Send transactional and marketing emails at scale.

Send emails programmatically with full control over deliverability, SMTP pools, and custom domains.

Quickstart

Send your first email in under 5 minutes

API Reference

Full reference for POST /v1/send and all endpoints

API Keys

Create and manage your API keys

Error Codes

Complete error reference with retry strategy

Why MisarMail?

Free to Use

Generous free tier — 100 emails/day, 3,000/month, no card required.

@misar.io Address

Every account gets a ready-to-send @misar.io sender address on signup.

Custom Domains

Send from your own domain with full DKIM, SPF, and DMARC alignment.

Multiple Accounts

Connect and manage multiple sender addresses from a single API key.

Flexible SMTP Pools

Use Misar's managed shared pools, or bring your own SMTP. Nothing to host.

Observability

Track opens, clicks, delivery, bounces, and complaints per sender domain.

Quick Example

curl https://api.misar.io/mail/v1/send \
  -H "Authorization: Bearer msk_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "from": { "email": "you@yourdomain.com", "name": "Your Name" },
    "to": [{ "email": "recipient@example.com" }],
    "subject": "Hello from MisarMail",
    "html": "<p>This email was sent via MisarMail API.</p>"
  }'

Base URL

All API endpoints use https://api.misar.io/mail as the base URL.

Plan Limits

Plan	Daily Limit	Monthly Limit	Price
Free	100/day	3,000/month	$0
Pro	10,000/day	300,000/month	$24.99/mo
Max	50,000/day	1,500,000/month	$99.99/mo
Enterprise	Custom	Custom	Custom

View Pricing

Compare plans and upgrade at mail.misar.io/pricing

MisarMail API Documentation