## 0.6.6 - 2026-05-12
### Bug Fixes
- Return HTTP 200 because madmail expects it, and make sure https is immediately retried when SMTP fails
### Features
- Improved SMTP error responses
### Miscellaneous Tasks
- Remove mac and windows from matrix tests
- Run cmlxc tests in all classic/classic-ipv4/madmail combinations
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
* dovecot: enable login names with square brackets
* config: make IPv4-only relays use self-signed TLS certs
* postfix: make delivery for IP-only relays work
* cmdeploy: skip DNS checks for IPv4 only relays
* www: generate dclogin codes for IPv4-only relays
* opendkim: disable DKIM signing on ipv4-only relays
* get delivery working
* get tests working on IPv4 only machine
* doc: document IPv4-only relays
* dns: warn if mail_domain is an IP, instead of checking DNS
* config: validate domains when formatting them
* ci: add cmlxc testing for no-DNS relays
* ci: run no-dns and normal CI in parallel
* retain "config.mail_domain" as the domain part of @ email addresses, so for ipv4 relays "[1.2.3.4]" and introduce config.ipv4_relay and config.mail_domain_bare helpers.
* ci: migrate from --no-dns to --type ipv4 for cmlxc compatibility
* cleanup dead code, fix docs, fixate cmlxc version
---------
Co-authored-by: missytake <missytake@systemli.org>
replaces #870fix#851
* fix(dns): address possible IndexError
* fix(dns): remove redundant docstring
* fix(dns): don't make NS explicit if None
* bump cmlxc to 0.13.5 which fixes a powerdns config issue
* remove the unneccessary SOA mocks, simplify mock tests, and run ruff format
Co-authored-by: holger krekel <holger@merlinux.eu>
Disables IP verification by upgrading filtermail to v0.6,
changelog: <https://github.com/chatmail/filtermail/releases/tag/v0.6.0>
Messages using domain-literal addresses no longer require
to match the origin SMTP connection IP anymore.
This allows for example a relay using IPv4 email addresses
to send messages to other relays over IPv6.
This is not considering a breaking change as IP-address-only
relays are not considered a stable feature.
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
Upgrade to filtermail v0.5, which has a built-in DKIM verifier
and disable OpenDKIM on reinject_incoming.
Signed-off-by: Jagoda Ślązak <jslazak@jslazak.com>
