chasquid
About
chasquid is an SMTP (email) server. It aims to be easy to configure and maintain for a small mail server, at the expense of flexibility and functionality. It's written in Go, and is open source under the Apache license 2.0. It is currently in beta: it's functional and has had some production exposure, but some things may still change in backwards-incompatible ways, including the configuration format. It should be rare and will be avoided if possible.Features
- Easy to configure, hard to mis-configure in ways that are harmful or insecure (e.g. no open relay, clear-text authentication, etc.).
- Tracking of per-domain TLS support, prevents connection downgrading.
- SMTP UTF8 (international usernames).
- IDNA (international domain names).
- Hooks for easy integration with greylisting, anti-virus and anti-spam.
- Multiple domains, with per-domain user database and aliases.
- Multiple TLS certificates.
- Easy integration with letsencrypt.
- Suffix dropping (user+something@domain -> user@domain).
- SPF checking.
- Monitoring HTTP server, with exported variables and tracing to help debugging.
The following are intentionally not implemented:
- Custom email routing and transport.
- DKIM/DMARC checking (although the post-data hook can be used for it).
- Different backends for domain and user configuration (Dovecot authentication may be implemented in the future).
Documentation
For more details, including installation and configuration instructions, please see the README file.Download
For now, download is only available via git:git clone https://blitiri.com.ar/repos/chasquid
Patches are welcome. You can also browse the git repository online.
Debian (testing) and Ubuntu (since 17.04) users can also install it using:
apt install chasquid
Contact
If you have any questions, comments or patches please send them to the mailing list, chasquid@googlegroups.com.To subscribe, send an email to chasquid+subscribe@googlegroups.com.
You can also browse the archives.
Alberto Bertogli (albertito@blitiri.com.ar) - Last updated 02/Jan/2017