open source · Email · MIT

Postal

A complete mail server for sending and receiving.

In short

  • What it is: Email, 13k+ GitHub stars, licensed MIT.
  • Replaces: Sendgrid — around $240/year saved.
  • Installed for: $149 on your own server — you own it, no monthly platform fee.
  • Licence: MIT. MIT/Apache-2.0 — white-label and resell freely.
How the service works
13k+ GitHub starsMITinstall difficulty: medium

$240

replaces per year

$1,200

saved over 5 years

$149

one-time install (yours forever)

48h

delivery

what it replaces

Postal vs the tools it replaces.

FeatureCommercial toolPostal (self-hosted)
Monthly cost$20/moYour compute only
BrandingVendor brandYours
DataVendor-hostedOn your server
LicenceProprietaryMIT

Replaces

  • Sendgrid — ~$20/mo

Licence posture

MIT. You can white-label and resell this. We'll brand it as yours.

MIT/Apache-2.0 — white-label and resell freely.

how to resell / replace

Turn it into a business.

Bundle it into a branded product you sell: install, brand it, charge a setup fee plus a monthly care plan. Because the licence is permissive, you can strip the branding and resell it as your own.

Bundle this with a done-for-you product: see the AI businesses or the white-label alternatives.

Best for

Install difficulty

medium

what we do

The install, step by step.

1

Provision VPS + Docker

2

Configure secrets + provider keys

3

Database + storage setup

4

Branding + domain

5

HTTPS + backups

6

Smoke test + handover

postal · install demo
see it installed

Watch a Postal install.

We generate an architecture diagram of the repo and walk through the deployment. Enter your name and email to unlock the demo.

Install Postal — $149.

Flat fee, delivered in 24–48 hours, on your own server, with HTTPS, backups and the AI keys wired.

All repos
FAQ

Postal: common questions

What does Postal replace?

Sendgrid — about $240 a year in subscriptions you stop paying.

How much does it cost to run Postal?

No licence fee — it ships under MIT. You pay only for your own server and any model/API keys. We install, harden and hand it over for a one-time $149.

Can I white-label and resell Postal?

You can white-label and resell this. We'll brand it as yours. MIT/Apache-2.0 — white-label and resell freely.

How hard is the install, and how long does it take?

We rate it medium. Delivered in 24–48 hours on your own server, with HTTPS, backups and the AI keys wired.

What do I actually own after installing Postal?

The running app, your data and the brand. No monthly platform fee and no per-seat pricing — you own it outright.