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Mail Gazelle Mail Gazelle
Transactional email API

Built for developers.
Loved by inboxes.

Mail Gazelle is a sending API for receipts, resets and alerts, with a searchable timeline behind every message.

Start sending free Read the API docs

Three steps from zero to production.

1

Verify your domain

Add the DNS records we generate.

2

Send your first message

3

Watch it land

Every message gets a timeline: accepted, queued, delivered, bounced — with the receiving server's raw SMTP response attached to the event.

Deliverability

The inbox is the feature. Everything else is plumbing.

Suppression that sticks — hard bounces and complaints are enforced at send time, across every key on the account.
Sending path
Your API call idempotent
Queue & rate shaping per provider
Recipient inbox event fired

Built for the failure cases, not the demo.

Tour the platform

Idempotency keys

Retry a send as hard as you like. Same key in, exactly one message out.

Observability

Every message keeps its receipt.

Search by recipient, tag, or SMTP response. Support can answer "did it send?" without opening a ticket with us.

tag:receipt status:bounced last 24h
[email protected] Your Acme receipt
Delivered 09:41:02 · 612ms
[email protected] Reset your password
Delivered 09:40:58 · 488ms
[email protected] Your Acme receipt
Hard bounce 09:40:31 · 1.2s
550 5.1.1 The email account that you tried to reach does not exist — added to suppression list

Pay for volume, not for seats.

Every plan includes the full API and unlimited domains.

Solo

$0forever

3,000 emails a month, 200 per day. 30-day logs.

Start free

Pro

Most teams
$10/ month

10,000 emails a month, no daily cap. 5 members, 90-day logs.

Get started
View all plans

Your first message is five minutes away.

Create a key, verify a domain, send. No card until you outgrow the free tier.