feat: support setup without domain, with only an IPv4 address#963

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hpk42 merged 16 commits into

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May 11, 2026

Commits on May 11, 2026

dovecot: enable login names with square brackets

missytake
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hpk42
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config: make IPv4-only relays use self-signed TLS certs

missytake
authored and
hpk42
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postfix: make delivery for IP-only relays work

missytake
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hpk42
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cmdeploy: skip DNS checks for IPv4 only relays

missytake
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hpk42
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www: generate dclogin codes for IPv4-only relays

missytake
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hpk42
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opendkim: disable DKIM signing on ipv4-only relays

missytake
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hpk42
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get delivery working

missytake
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hpk42
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get tests working on IPv4 only machine

missytake
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hpk42
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doc: document IPv4-only relays

missytake
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hpk42
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dns: warn if mail_domain is an IP, instead of checking DNS

missytake
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hpk42
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config: validate domains when formatting them

missytake
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hpk42
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ci: add cmlxc testing for no-DNS relays

missytake
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hpk42
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ci: run no-dns and normal CI in parallel

missytake
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hpk42
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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.
hpk42
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ci: migrate from --no-dns to --type ipv4 for cmlxc compatibility
hpk42
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cleanup dead code, fix docs, fixate cmlxc version
hpk42
committed