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ed38945fca
When resolving MX records, we need to distinguish between "no such domain" and other kinds of errors. Before Go 1.13, this was not possible, so we had a workaround that assumed any permanent error was a "no such domain", which is not great, but functional. Now that our minimum supported version is Go 1.15, we can remove the workaround. This patch replaces the workaround with proper logic using DNSError.IsNotFound to identify NXDOMAIN results when resolving MX records. This requires to adjust a few tests, that used to work on environments where resolving unknown domains (used for testing) returned a permanent error, and now they no longer do so. Instead of relying on this environmental property, we make the affected tests use our own DNS server, which should make them more hermetic and reproducible.
chasquid
chasquid is an SMTP (email) server with a focus on simplicity, security, and ease of operation.
It is designed mainly for individuals and small groups.
It's written in Go, and distributed under the Apache license 2.0.
Features
- Easy
- Easy to configure.
- Hard to mis-configure in ways that are harmful or insecure (e.g. no open relay, or clear-text authentication).
- Monitoring HTTP server, with exported variables and tracing to help debugging.
- Integrated with Debian, Ubuntu, and Arch.
- Supports using Dovecot for authentication.
- Useful
- Secure
- Tracking of per-domain TLS support, prevents connection downgrading.
- Multiple TLS certificates.
- Easy integration with Let's Encrypt.
- SPF and MTA-STS checking.
Documentation
The how-to guide and the installation guide are the best starting points on how to install, configure and run chasquid.
You will find all documentation here.
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.
Security issues can be reported privately to albertito@blitiri.com.ar.
Bug reports and pull requests on GitHub are also welcome.
You can also reach out via IRC, #chasquid on OFTC.