5 KiB
Stable Releases
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Features
v2.0
- Continous Integration Testing
- Multiple Domains
- Postfix MTA
- smtp on port 25
- submission port 587
- lmtp with dovecot
- Dovecot
- maildir folders
- imap starttls on port 143
- pop3 starttls on port 110
- Certificates
- manual certificates
- on the fly creation
- Let's Encrypt
- Spam Filtering
- via rspamd
- Virus Scanning
- via clamav
- DKIM Signing
- via opendkim
- User Management
- declarative user management
- declarative password management
- Sieves
- A simple standard script that moves spam
- Allow user defined sieve scripts
- ManageSieve support
- User Aliases
- Regular aliases
- Catch all aliases
In the future
- DKIM Signing
- Allow a per domain selector
Changelog
v1.0 -> v1.1
- Changed structure to Nix Modules
- Adds Sieve support
v1.1 -> v2.0
- rename domain to fqdn, seperate fqdn from domains
- multi domain support
Quick Start
{ config, pkgs, ... }:
{
imports = [
(builtins.fetchTarball "https://github.com/r-raymond/nixos-mailserver/archive/v2.1.3.tar.gz")
];
mailserver = {
enable = true;
fqdn = "mail.example.com";
domains = [ "example.com" "example2.com" ];
loginAccounts = {
"user1@example.com" = {
hashedPassword = "$6$/z4n8AQl6K$kiOkBTWlZfBd7PvF5GsJ8PmPgdZsFGN1jPGZufxxr60PoR0oUsrvzm2oQiflyz5ir9fFJ.d/zKm/NgLXNUsNX/";
aliases = [
"info@example.com"
"postmaster@example.com"
"postmaster@example2.com"
];
};
};
};
}
For a complete list of options, see default.nix.
How to Set Up a 10/10 Mail Server Guide
Check out the Complete Setup Guide in the project's wiki.
How to Backup
This is really easy. First off you should have a backup of your
configuration.nix file where you have the server config (but that is already
in a git repository right?)
Next you need to backup /var/vmail or whatever you have specified for the
option mailDirectory. This is where all the mails reside. Good options are a
cron job with rsync or scp. But really anything works, as it is simply a
folder with plenty of files in it. If your backup solution does not preserve the
owner of the files don't forget to chown them to virtualMail:virtualMail if you copy
them back (or whatever you specified as vmailUserName, and vmailGoupName).
Finally you can (optionally) make a backup of /var/dkim (or whatever you
specified as dkimKeyDirectory). If you should lose those don't worry, new ones
will be created on the fly. But you will need to repeat step B)5 and correct
all the dkim keys.
How to Test for Development
You can test the setup via nixops. After installation, do
nixops create nixops/single-server.nix nixops/vbox.nix -d mail
nixops deploy -d mail
nixops info -d mail
You can then test the server via e.g. telnet. To log into it, use
nixops ssh -d mail mailserver
To test imap manually use
openssl s_client -host mail.example.com -port 143 -starttls imap
A Complete Mail Server Without Moving Parts
Used Technologies
- Nixos
- Nixpkgs
- Dovecot
- Postfix
- Rmilter
- Rspamd
- Clamav
- Opendkim
- Pam
Features
- unlimited domain
- unlimited mail accounts
- unlimited aliases for every mail account
- spam and virus checking
- dkim signing of outgoing emails
- imap (optionally pop3)
- startTLS
Nonfeatures
- moving parts
- SQL databases
- configurations that need to be made after
nixos-rebuild switch - complicated storage schemes
- webclients / http-servers
Contributors
- Special thanks to @Infinisil for the module rewrite
- Special thanks to @jbboehr for multidomain implementation
- @danbst
- @phdoerfler
- @eqyiel
Alternative Implementations
Credits
- send mail graphic by tnp_dreamingmao from TheNounProject is licensed under CC BY 3.0
- Logo made with Logomakr.com