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Joshua Tauberer 3e19f85fad Add domain maps from Unicode forms of internationalized domains to their ASCII forms
When an email is received by Postfix using SMTPUTF8 and the recipient domain is a Unicode internationalized domain, it was failing to be delivered (bouncing with 'relay access denied') because our users and aliases tables only store ASCII (IDNA) forms of internationalized domains. In this commit, domain maps are added to the auto_aliases table from the Unicode form of each mail domain to its IDNA form, if those forms are different. The Postfix domains query is updated to look at the auto_aliases table now as well, since it is the only table with Unicode forms of the mail domains.

However, mail delivery is still not working since the Dovecot LMTP server does not support SMTPUTF8, and mail still bounces but with an error that SMTPUTF8 is not supported.
2021-09-24 08:11:36 -04:00
api Replace HMAC-based session API keys with tokens stored in memory in the daemon process 2021-09-06 09:23:58 -04:00
conf Enable and recommend port 465 for mail submission instead of port 587 (fixes #1849) 2021-05-15 16:42:14 -04:00
management Add domain maps from Unicode forms of internationalized domains to their ASCII forms 2021-09-24 08:11:36 -04:00
setup Add domain maps from Unicode forms of internationalized domains to their ASCII forms 2021-09-24 08:11:36 -04:00
tests Replace HMAC-based session API keys with tokens stored in memory in the daemon process 2021-09-06 09:23:58 -04:00
tools Add MFA list/disable to the management CLI so admins can restore access if MFA device is lost 2020-10-31 10:23:43 -04:00
.editorconfig Use correct setting for .editorconfig indent_style (#1670) 2019-11-03 13:31:29 -05:00
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CHANGELOG.md Set a cookie for /admin/munin pages to grant access to Munin reports 2021-09-24 08:11:36 -04:00
CODE_OF_CONDUCT.md some improvements suggested by the community 2016-08-15 20:09:05 -04:00
CONTRIBUTING.md Add some development instructions to CONTRIBUTING.md (#1348) 2018-02-05 08:41:19 -05:00
LICENSE add CC0 1.0 Universal in LICENSE 2014-04-23 15:49:23 -04:00
README.md v0.54 2021-06-20 15:50:04 -04:00
Vagrantfile minimal changeset to get things working on 18.04 2018-10-03 13:00:06 -04:00
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README.md

Mail-in-a-Box

By @JoshData and contributors.

Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

Please see https://mailinabox.email for the project's website and setup guide!


Our goals are to:

  • Make deploying a good mail server easy.
  • Promote decentralization, innovation, and privacy on the web.
  • Have automated, auditable, and idempotent configuration.
  • Not make a totally unhackable, NSA-proof server.
  • Not make something customizable by power users.

Additionally, this project has a Code of Conduct, which supersedes the goals above. Please review it when joining our community.

In The Box

Mail-in-a-Box turns a fresh Ubuntu 18.04 LTS 64-bit machine into a working mail server by installing and configuring various components.

It is a one-click email appliance. There are no user-configurable setup options. It "just works."

The components installed are:

It also includes system management tools:

  • Comprehensive health monitoring that checks each day that services are running, ports are open, TLS certificates are valid, and DNS records are correct
  • A control panel for adding/removing mail users, aliases, custom DNS records, configuring backups, etc.
  • An API for all of the actions on the control panel

It also supports static website hosting since the box is serving HTTPS anyway. (To serve a website for your domains elsewhere, just add a custom DNS "A" record in you Mail-in-a-Box's control panel to point domains to another server.)

For more information on how Mail-in-a-Box handles your privacy, see the security details page.

Installation

See the setup guide for detailed, user-friendly instructions.

For experts, start with a completely fresh (really, I mean it) Ubuntu 18.04 LTS 64-bit machine. On the machine...

Clone this repository and checkout the tag corresponding to the most recent release:

$ git clone https://github.com/mail-in-a-box/mailinabox
$ cd mailinabox
$ git checkout v0.54

Begin the installation.

$ sudo setup/start.sh

The installation will install, uninstall, and configure packages to turn the machine into a working, good mail server.

For help, DO NOT contact Josh directly --- I don't do tech support by email or tweet (no exceptions).

Post your question on the discussion forum instead, where maintainers and Mail-in-a-Box users may be able to help you.

Note that while we want everything to "just work," we can't control the rest of the Internet. Other mail services might block or spam-filter email sent from your Mail-in-a-Box. This is a challenge faced by everyone who runs their own mail server, with or without Mail-in-a-Box. See our discussion forum for tips about that.

Contributing and Development

Mail-in-a-Box is an open source project. Your contributions and pull requests are welcome. See CONTRIBUTING to get started.

The Acknowledgements

This project was inspired in part by the "NSA-proof your email in 2 hours" blog post by Drew Crawford, Sovereign by Alex Payne, and conversations with @shevski, @konklone, and @GregElin.

Mail-in-a-Box is similar to iRedMail and Modoboa.

The History

  • In 2007 I wrote a relatively popular Mozilla Thunderbird extension that added client-side SPF and DKIM checks to mail to warn users about possible phishing: add-on page, source.
  • In August 2013 I began Mail-in-a-Box by combining my own mail server configuration with the setup in "NSA-proof your email in 2 hours" and making the setup steps reproducible with bash scripts.
  • Mail-in-a-Box was a semifinalist in the 2014 Knight News Challenge, but it was not selected as a winner.
  • Mail-in-a-Box hit the front page of Hacker News in April 2014, September 2014, May 2015, and November 2016.
  • FastCompany mentioned Mail-in-a-Box a roundup of privacy projects on June 26, 2015.