3b7cda8cc5
Flake lock file updates:
• Updated input 'git-hooks':
'github:cachix/git-hooks.nix/dcf5072734cb576d2b0c59b2ac44f5050b5eac82' (2025-03-22)
→ 'github:cachix/git-hooks.nix/623c56286de5a3193aa38891a6991b28f9bab056' (2025-06-11)
• Updated input 'nixpkgs':
'github:NixOS/nixpkgs/adaa24fbf46737f3f1b5497bf64bae750f82942e' (2025-05-13)
→ 'github:NixOS/nixpkgs/3e3afe5174c561dee0df6f2c2b2236990146329f' (2025-06-07)
• Updated input 'nixpkgs-25_05':
'github:NixOS/nixpkgs/ca49c4304acf0973078db0a9d200fd2bae75676d' (2025-05-18)
→ 'github:NixOS/nixpkgs/fd487183437963a59ba763c0cc4f27e3447dd6dd' (2025-06-12)
Release branches
For each NixOS release, we publish a branch. You then have to use the SNM branch corresponding to your NixOS version.
- For NixOS 25.05
- For NixOS 24.11
- For NixOS unstable
- Use the SNM branch
master - Documentation
- Use the SNM branch
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
- Matrix: #nixos-mailserver:nixos.org
- IRC:
#nixos-mailserveron Libera Chat
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
- send mail graphic by tnp_dreamingmao from TheNounProject is licensed under CC BY 3.0
- Logo made with Logomakr.com