Operator Docs

PostMTA Operator Documentation

Everything you need to configure, operate, and scale your email infrastructure with PostMTA.

Quick Start →

Send your first email in under 5 minutes.

Authentication →

API keys, OAuth tokens, and access control.

Sending Domains →

Domain verification and DKIM/DMARC setup.

Sending Email →

The Email API, batching, and priority queuing.

Webhooks →

Real-time event delivery and retry logic.

IP Pools →

Dedicated IPs, warm-up, and reputation management.

API Base URL

https://api.postmta.com/v1

Quick Example

curl -X POST https://api.postmta.com/v1/messages/send -H "Authorization: Bearer pmta_live_xxxxxxxxxxxx" -H "Content-Type: application/json" -d '{"from":{"address":"hello@yourdomain.com"},"to":[{"address":"recipient@example.com"}],"subject":"Welcome","html":"Hello!
"}'

Rate Limits

Plan	Requests/min	Emails/day
Starter	60	10,000
Growth	300	100,000
Scale	1,000	Unlimited
Enterprise	Custom	Unlimited

HTTP Status Codes

Code	Meaning
`200`	Success
`201`	Created
`400`	Bad Request
`401`	Unauthorized
`403`	Forbidden
`429`	Rate limit exceeded
`500`	Internal server error

Official Libraries

Node.js / TypeScript - @postmta/sdk
Python - postmta-python
Go - github.com/postmta/postmta-go
Ruby - postmta-ruby
PHP - postmta/php
Java - com.postmta:postmta-java