Source: https://seerepo.com/r/postalserver/postal
Markdown source: https://seerepo.com/r/postalserver/postal.md
Description: postalserver/postal is a Ruby repo with 26,678 lines written. postal is built with Rails and rackup and uses MySQL and Sentry.

# What's inside postalserver/postal

postalserver/postal is a Ruby repo with 26,678 lines written. postal is built with Rails and rackup and uses MySQL and Sentry.

Its description on GitHub: “📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail”

Ruby · MIT · 16,928 stars · GitHub: https://github.com/postalserver/postal

Read on November 7, 2026, at commit d96eddb.

## More on this repo

- [What is postal built with?](https://seerepo.com/r/postalserver/postal/built): postal is built with Rails and rackup and uses MySQL and Sentry.
- [How much of postal did AI write?](https://seerepo.com/r/postalserver/postal/ai): No AI tool signed any of the 640 commits of postal.

## In figures

- 26,678 lines written: The ones people and agents wrote: product, tests, schemas and tooling. Generated code doesn’t count.
- 321 files: The same as the lines: product, tests, schemas and tooling. What’s generated doesn’t count.
- 78 test files: The files that test the code.
- 14 technologies: Each service with the file and line that prove it.

SeeRepo read the facts in its code and kept none of it. AI only helps sort its packages and folders by their names, and never sees its code.

## Frequently asked questions

### What is postalserver/postal?

postalserver/postal is a Ruby repo with 26,678 lines written. Its description on GitHub: “📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail”

The proof: [its page on GitHub](https://github.com/postalserver/postal)

### What is postal built with?

postal is built with Rails and rackup and uses MySQL and Sentry.

The proof: [each service with its file and line](https://seerepo.com/r/postalserver/postal/built)

### What license does postal have?

postal is released under the MIT license.

The proof: [its page on GitHub](https://github.com/postalserver/postal)

### How many stars does postal have on GitHub?

postal had 16,928 stars on GitHub on November 7, 2026.

The proof: [its page on GitHub](https://github.com/postalserver/postal)

## Add this badge to your README

It links to this page and updates itself each time SeeRepo reads the repo.

```markdown
[![postalserver/postal on SeeRepo](https://seerepo.com/badge/postalserver/postal.svg)](https://seerepo.com/r/postalserver/postal?de=insignia)
```

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.