163 lines
4.7 KiB
Markdown
163 lines
4.7 KiB
Markdown
|
|
<img width="800px" src="www/src/collage-top.png"/>
|
|
|
|
# Chatmail services optimized for Delta Chat apps
|
|
|
|
This repository helps to setup a ready-to-use chatmail server
|
|
comprised of a minimal setup of the battle-tested
|
|
[postfix smtp](https://www.postfix.org) and [dovecot imap](https://www.dovecot.org) services.
|
|
|
|
The setup is designed and optimized for providing chatmail accounts
|
|
for use by [Delta Chat apps](https://delta.chat).
|
|
|
|
Chatmail accounts are automatically created by a first login,
|
|
after which the initially specified password is required for using them.
|
|
|
|
## Deploying your own chatmail server
|
|
|
|
We use `chat.example.org` as the chatmail domain in the following steps.
|
|
Please substitute it with your own domain.
|
|
|
|
1. Install the `cmdeploy` command in a virtualenv
|
|
|
|
```
|
|
git clone https://github.com/deltachat/chatmail
|
|
cd chatmail
|
|
scripts/initenv.sh
|
|
```
|
|
|
|
2. Create chatmail configuration file `chatmail.ini`:
|
|
|
|
```
|
|
scripts/cmdeploy init chat.example.org # <-- use your domain
|
|
```
|
|
|
|
3. Setup first DNS records for your chatmail domain,
|
|
according to the hints provided by `cmdeploy init`.
|
|
Verify that SSH root login works:
|
|
|
|
```
|
|
ssh root@chat.example.org # <-- use your domain
|
|
```
|
|
|
|
4. Deploy to the remote chatmail server:
|
|
|
|
```
|
|
scripts/cmdeploy run
|
|
```
|
|
This script will also show you additional DNS records
|
|
which you should configure at your DNS provider
|
|
(it can take some time until they are public).
|
|
|
|
### Other helpful commands:
|
|
|
|
To check the status of your remotely running chatmail service:
|
|
|
|
```
|
|
scripts/cmdeploy status
|
|
```
|
|
|
|
To check whether your DNS records are correct:
|
|
|
|
```
|
|
scripts/cmdeploy dns
|
|
```
|
|
|
|
To test whether your chatmail service is working correctly:
|
|
|
|
```
|
|
scripts/cmdeploy test
|
|
```
|
|
|
|
To measure the performance of your chatmail service:
|
|
|
|
```
|
|
scripts/cmdeploy bench
|
|
```
|
|
|
|
## Overview of this repository
|
|
|
|
This repository drives the development of chatmail services,
|
|
comprised of minimal setups of
|
|
|
|
- [postfix smtp server](https://www.postfix.org)
|
|
- [dovecot imap server](https://www.dovecot.org)
|
|
|
|
as well as custom services that are integrated with these two:
|
|
|
|
- `chatmaild/src/chatmaild/doveauth.py` implements
|
|
create-on-login account creation semantics and is used
|
|
by Dovecot during login authentication and by Postfix
|
|
which in turn uses [Dovecot SASL](https://doc.dovecot.org/configuration_manual/authentication/dict/#complete-example-for-authenticating-via-a-unix-socket)
|
|
to authenticate users
|
|
to send mails for them.
|
|
|
|
- `chatmaild/src/chatmaild/filtermail.py` prevents
|
|
unencrypted e-mail from leaving the chatmail service
|
|
and is integrated into postfix's outbound mail pipelines.
|
|
|
|
There is also the `cmdeploy/src/cmdeploy/cmdeploy.py` command line tool
|
|
which helps with setting up and managing the chatmail service.
|
|
`cmdeploy run` uses [pyinfra-based scripting](https://pyinfra.com/)
|
|
in `cmdeploy/src/cmdeploy/__init__.py`
|
|
to automatically install all chatmail components on a server.
|
|
|
|
|
|
### Home page and getting started for users
|
|
|
|
`cmdeploy run` also creates default static Web pages and deploys them
|
|
to a nginx web server with:
|
|
|
|
- a default `index.html` along with a QR code that users can click to
|
|
create accounts on your chatmail provider,
|
|
|
|
- a default `info.html` that is linked from the home page,
|
|
|
|
- a default `policy.html` that is linked from the home page.
|
|
|
|
All `.html` files are generated
|
|
by the according markdown `.md` file in the `www/src` directory.
|
|
|
|
|
|
### Refining the web pages
|
|
|
|
|
|
```
|
|
scripts/cmdeploy webdev
|
|
```
|
|
|
|
This starts a local live development cycle for chatmail Web pages:
|
|
|
|
- uses the `www/src/page-layout.html` file for producing static
|
|
HTML pages from `www/src/*.md` files
|
|
|
|
- continously builds the web presence reading files from `www/src` directory
|
|
and generating html files and copying assets to the `www/build` directory.
|
|
|
|
- Starts a browser window automatically where you can "refresh" as needed.
|
|
|
|
|
|
## Emergency Commands to disable automatic account creation
|
|
|
|
If you need to stop account creation,
|
|
e.g. because some script is wildly creating accounts,
|
|
login to the server with ssh and run:
|
|
|
|
```
|
|
touch /etc/chatmail-nocreate
|
|
```
|
|
|
|
While this file is present, account creation will be blocked.
|
|
|
|
### Ports
|
|
|
|
[Postfix](http://www.postfix.org/) listens on ports 25 (smtp) and 587 (submission) and 465 (submissions).
|
|
[Dovecot](https://www.dovecot.org/) listens on ports 143 (imap) and 993 (imaps).
|
|
[nginx](https://www.nginx.com/) listens on port 443 (https).
|
|
[acmetool](https://hlandau.github.io/acmetool/) listens on port 80 (http).
|
|
|
|
Delta Chat apps will, however, discover all ports and configurations
|
|
automatically by reading the [autoconfig XML file](https://www.ietf.org/archive/id/draft-bucksch-autoconfig-00.html) from the chatmail service.
|
|
|
|
|