std/email delivery status

\n\n

\n \n \n {latest\n ? up\n ? `Operational — last email delivered in ${((latest.latency_ms ?? 0) / 1000).toFixed(1)}s`\n : `Down — last test: ${latest.status}`\n : \"No test results yet\"}\n \n

\n {latest && (\n

\n Last tested {new Date(latest.sent_at).toUTCString()} · runs every 15 minutes\n

\n )}\n\n

\n Delivery latency (last {chart.length} tests)\n

\n {(() => {\n const W = 640, H = 200;\n const PAD = { left: 44, right: 12, top: 12, bottom: 24 };\n const plotW = W - PAD.left - PAD.right;\n const plotH = H - PAD.top - PAD.bottom;\n const x = (i: number) =>\n PAD.left + (chart.length > 1 ? (i / (chart.length - 1)) * plotW : plotW / 2);\n const y = (ms: number) => PAD.top + plotH - (ms / maxLatency) * plotH;\n const ticks = [0, maxLatency / 2, maxLatency];\n const ok = chart\n .map((r, i) => ({ r, i }))\n .filter(({ r }) => r.latency_ms !== null);\n const line = ok\n .map(({ r, i }, j) => `${j === 0 ? \"M\" : \"L\"}${x(i).toFixed(1)},${y(r.latency_ms!).toFixed(1)}`)\n .join(\" \");\n return (\n \n );\n })()}\n

\n green = delivered · amber = slow (>30s) · red dot at top = failed\n

\n\n

\n \n view source\n \n

Code