Martin Weinelt edd828ca88
flake.lock: Update
Flake lock file updates:

• Updated input 'flake-compat':
    'github:edolstra/flake-compat/0f9255e01c2351cc7d116c072cb317785dd33b33' (2023-10-04)
  → 'github:edolstra/flake-compat/9100a0f413b0c601e0533d1d94ffd501ce2e7885' (2025-05-12)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/23e89b7da85c3640bbc2173fe04f4bd114342367' (2024-11-19)
  → 'github:NixOS/nixpkgs/adaa24fbf46737f3f1b5497bf64bae750f82942e' (2025-05-13)
• Updated input 'nixpkgs-24_11':
    'github:NixOS/nixpkgs/314e12ba369ccdb9b352a4db26ff419f7c49fa84' (2024-12-13)
  → 'github:NixOS/nixpkgs/5d736263df906c5da72ab0f372427814de2f52f8' (2025-05-14)
2025-05-15 16:16:16 +02:00
2017-12-21 11:55:22 +01:00
2025-05-15 16:16:16 +02:00
2025-05-15 16:16:16 +02:00
2016-07-21 18:09:04 +02:00
2022-12-22 20:45:01 +01:00

Simple Nixos MailServer

license pipeline status

Release branches

For each NixOS release, we publish a branch. You then have to use the SNM branch corresponding to your NixOS version.

Features

  • Continous Integration Testing
  • Multiple Domains
  • Postfix
    • SMTP on port 25
    • Submission TLS on port 465
    • Submission StartTLS on port 587
    • LMTP with Dovecot
  • Dovecot
    • Maildir folders
    • IMAP with TLS on port 993
    • POP3 with TLS on port 995
    • IMAP with StartTLS on port 143
    • POP3 with StartTLS on port 110
  • Certificates
    • ACME
    • Custom certificates
  • Spam Filtering
    • Via Rspamd
  • Virus Scanning
    • Via ClamAV
  • DKIM Signing
    • Via Rspamd
  • User Management
    • Declarative user management
    • Declarative password management
    • LDAP users
  • Sieve
    • Allow user defined sieve scripts
    • Moving mails from/to junk trains the Bayes filter
    • ManageSieve support
  • User Aliases
    • Regular aliases
    • Catch all aliases

In the future

  • Automatic client configuration
  • DKIM Signing
    • Allow per domain selectors
    • Allow passing DKIM signing keys
  • Improve the Forwarding Experience
  • User management
    • Allow local and LDAP user to coexist
  • OpenID Connect
    • Depends on relevant clients adding support, e.g. Thunderbird

Get in touch

How to Set Up a 10/10 Mail Server Guide

Check out the Setup Guide in the project's documentation.

For a complete list of options, see in readthedocs.

Development

See the How to Develop SNM documentation page.

Contributors

See the contributor tab

Alternative Implementations

Credits

Description
A complete and Simple Nixos Mailserver
Readme GPL-3.0 168 MiB
Languages
Nix 93.2%
Python 6.5%
Sieve 0.3%