step-ca-acme only has an HTTP-01 (Traefik) solver, but mail.iamworkin.lan must resolve
to the dedicated MetalLB IP 10.0.56.202 (SMTP/IMAP), so HTTP-01 cannot validate (order
stuck pending since 2026-05-06; cert expired 2026-05-24). mail-tls is now issued from
step-ca's JWK 'admin' provisioner and auto-renewed by a systemd timer on noc1 that writes
the mail-tls secret directly. The secret + Deployment mount + webmail IngressRoute are
unchanged. Re-add a Certificate only if a DNS-01 solver is deployed for step-ca-acme.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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