{"service":"sendameal-mail-relay","status":"ok","time":"2026-08-20T21:30:12.028Z","version":"v3.5","endpoints":{"send":"POST /send  (auth: X-Relay-Key header OR ?k=KEY query; body: {to, subject, body, from?, cc?, bcc?, contentType?})","send_branded":"POST /send/branded  (body: {to, preset, ...vars})","send_internal":"POST /send/internal  (body: {to?, preset, ...vars})","preview_branded":"POST /preview/branded","preview_internal":"POST /preview/internal","refresh":"POST /refresh","diag":"GET /diag  (auth required; returns version + identities + presets)"}}