The same licence as ihasmail, which this tool deploys. The network clause
is the part that matters for a deploy tool: a modified copy offered as a
hosted service that deploys for other people has to make its source
available to them, which GPL would not require. Running the tool for your
own host is unaffected.
v2026.9.13 was released under GPL-3.0-or-later and stays so; this applies
from the next release.
scripts/build-release.sh builds reproducible linux/amd64 and linux/arm64
archives with SHA256SUMS; the release workflow runs it on a v* tag after
vet, tests and govulncheck, and publishes the release. The README now
covers what the tool is, what it does step by step, why each decision is
made, how to deploy and run a mail host, the security model, and
troubleshooting. -h exits 0.
jcoffey-dev