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bors[bot] c15e4e6015
Merge
2276: Autoconfig of email clients r=mergify[bot] a=nextgens

## What type of PR?

Feature

## What does this PR do?

It provides auto-configuration templates for email clients and encourages them to use implicit TLS (see https://nostarttls.secvuln.info/)

There are numerous caveats:
- it will only work if suitable DNS records are created and certificates obtained (autoconfig, autodiscover, ...)
- the mobileconfig file isn't signed
- the credentials will be prompted... we could/should provision a token on each request instead
- it currently doesn't advertise caldav
- it's IMAP only

### Related issue(s)
- close  

## Prerequisites
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.

- [x] In case of feature or enhancement: documentation updated accordingly
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file.


Co-authored-by: Florent Daigniere <nextgens@freenetproject.org>
.github Switched from "$(/usr/bin/git log -1 --format='%H')" to "$(/usr/bin/git rev-parse HEAD)"
core Merge
design RFC: Mailu directory structure
docs Merge
optional Update alpine-linux to 3.14.4 - OpenSSL security FIX
setup Sturdy up the warning about v6 in setup
tests doh
towncrier Merge
webmails Update application.ini
.gitignore use different alpine image for arm, add config for php images+arm
.mergify.yml Preparations for 1.9 release.
AUTHORS.md Update AUTHORS.md
CHANGELOG.md Update CHANGELOG.md with items that were not added by mistake.
CODE_OF_CONDUCT.md Add a code of conduct, fixes
CONTRIBUTING.md Update "the development guidelines" hyperlink
ISSUE_TEMPLATE.md Remove <> tags as they break markdown rendering
LICENSE.md Rename the freeposte/mailu directory and database
PULL_REQUEST_TEMPLATE.md fix spelling
README.md document
RELEASE_TEMPLATE.md changed semver example to 1.9.x
bors.toml Switch to github actions for CI/CD
pyproject.toml Fix the package setting

README.md

Mailu

Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer and as in free speech), open to suggestions and external contributions. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware.

Most of the documentation is available on our Website, you can also try our demo server before setting up your own, and come talk to us on Matrix.

Features

Main features include:

  • Standard email server, IMAP and IMAP+, SMTP and Submission with autoconfiguration profiles for clients
  • Advanced email features, aliases, domain aliases, custom routing
  • Web access, multiple Webmails and administration interface
  • User features, aliases, auto-reply, auto-forward, fetched accounts
  • Admin features, global admins, announcements, per-domain delegation, quotas
  • Security, enforced TLS, DANE, MTA-STS, Letsencrypt!, outgoing DKIM, anti-virus scanner
  • Antispam, auto-learn, greylisting, DMARC and SPF
  • Freedom, all FOSS components, no tracker included

Domains

Contributing

Mailu is free software, open to suggestions and contributions. All components are free software and compatible with the MIT license. All specific configuration files, Dockerfiles and code are placed under the MIT license.