A new Stalwart drops you into a five-screen wizard — hostname, domain,
storage backend, directory, logging, DNS — before it will do anything.
LibrePortal already knows the two answers that matter and the rest have
sane defaults, so asking is asking a question we can answer ourselves.
v0.16 exposes those wizard fields as a `Bootstrap` singleton, so the whole
thing is one `update` applied through the Stalwart CLI. The CLI is not in
the server image (upstream split it into its own repo), but it publishes a
multi-arch container, so we borrow the server's network namespace and run
it there — nothing installed on the host, nothing to clean up, arm64 works.
Setup now also:
- generates DKIM keys (Ed25519 + RSA) with rotation left switched on, and
requests a TLS certificate. That last one is easy to miss: Traefik only
fronts the admin port, so 25/465/587/993 never see its certificate and
clients would hit a self-signed one on 993.
- creates postmaster@<domain>. The generated zone points DMARC and TLS-RPT
reports there and nothing was creating it, so those reports bounced.
- prints the record set read back from the server rather than composed
here, so it includes the real DKIM public keys, MTA-STS, TLS-RPT and the
SRV records clients autoconfigure from. This hook used to tell the user
to go and fetch DKIM themselves; by that point the keys exist.
Optionally hands DNS to a provider API (Cloudflare/DigitalOcean/DeSEC),
which keeps the whole record set in sync and makes DKIM rotation safe to
leave on. Off by default: the token can write to your zone and lives in
the mail server's database.
Re-running is safe — provisioning is skipped once config.json exists, and
the plans use upsert so they reconcile rather than duplicate.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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