Add SMTP support for trade emails

.env.example

@@ -85,11 +85,17 @@ CUSTOMER_SUPPORT_EMAIL=
 RISK_ADMIN_WALLET=
 
 # Trade email alerts
-# Use either Resend directly or a webhook from Zapier/Make/another email automation.
+# Use Resend, SMTP, or a webhook from Zapier/Make/another email automation.
 RESEND_API_KEY=
 TRADE_EMAIL_FROM=Poly Arena <alerts@yourdomain.com>
 TRADE_EMAIL_REPLY_TO=
 TRADE_EMAIL_WEBHOOK_URL=
+SMTP_HOST=
+SMTP_PORT=
+SMTP_SECURE=true
+SMTP_USER=
+SMTP_PASS=
+SMTP_FROM=
 
 # Agent chat
 OPENAI_API_KEY=

api/live.js

@@ -9,6 +9,7 @@ import {
   updateRealPositionMark,
   updateTradeTicketStatus,
 } from "./_db.js";
+import nodemailer from "nodemailer";
 
 const REQUIRED_ENV = [
   ["PRODUCTION_APP_URL", "Production app URL"],
@@ -173,6 +174,28 @@ function stackStatus() {
   });
 }
 
+function tradeEmailStatus() {
+  const resend = Boolean(process.env.RESEND_API_KEY);
+  const webhook = Boolean(process.env.TRADE_EMAIL_WEBHOOK_URL);
+  const smtpMissing = ["SMTP_HOST", "SMTP_PORT", "SMTP_USER", "SMTP_PASS"].filter((key) => !process.env[key]);
+  const smtp = smtpMissing.length === 0;
+  const provider = resend ? "resend" : (smtp ? "smtp" : (webhook ? "webhook" : null));
+  return {
+    configured: Boolean(provider),
+    provider,
+    options: {
+      resend: { configured: resend, missing: resend ? [] : ["RESEND_API_KEY"] },
+      smtp: { configured: smtp, missing: smtpMissing },
+      webhook: { configured: webhook, missing: webhook ? [] : ["TRADE_EMAIL_WEBHOOK_URL"] },
+    },
+    missing_any_one_of: provider ? [] : [
+      "RESEND_API_KEY",
+      "or SMTP_HOST + SMTP_PORT + SMTP_USER + SMTP_PASS",
+      "or TRADE_EMAIL_WEBHOOK_URL",
+    ],
+  };
+}
+
 function liveTradingReady() {
   const requiredConfigured = providerStatus().every((x) => x.configured);
   const liveFlagEnabled = process.env.LIVE_TRADING_ENABLED === "true";
@@ -214,6 +237,7 @@ function baseStatus() {
       : "Live trading is locked until eligibility, payments, wallet/deposit-wallet signing, Polymarket CLOB credentials, audit storage, monitoring, and LIVE_TRADING_ENABLED=true are configured.",
     providers,
     provider_stack: stackStatus(),
+    trade_email: tradeEmailStatus(),
     personal_requirements: personal,
     launch_requirements: LAUNCH_REQUIREMENTS.map(([key, label]) => ({ key, label })),
     webhooks: WEBHOOK_ROUTES.map(([provider, label, path]) => ({
@@ -336,6 +360,31 @@ async function sendTradeEmail({ to, events, appUrl, test }) {
     return { status: 200, body: { ok: true, provider: "resend", id: data?.id || null, sent: events.length } };
   }
 
+  if (process.env.SMTP_HOST && process.env.SMTP_PORT && process.env.SMTP_USER && process.env.SMTP_PASS) {
+    const port = Number(process.env.SMTP_PORT);
+    const secure = String(process.env.SMTP_SECURE || "").toLowerCase() === "true" || port === 465;
+    const from = process.env.TRADE_EMAIL_FROM || process.env.SMTP_FROM || process.env.SMTP_USER;
+    const replyTo = process.env.TRADE_EMAIL_REPLY_TO || process.env.CUSTOMER_SUPPORT_EMAIL || undefined;
+    const transporter = nodemailer.createTransport({
+      host: process.env.SMTP_HOST,
+      port,
+      secure,
+      auth: {
+        user: process.env.SMTP_USER,
+        pass: process.env.SMTP_PASS,
+      },
+    });
+    const info = await transporter.sendMail({
+      from,
+      to: email,
+      replyTo,
+      subject: payload.subject,
+      text: payload.text,
+      html: payload.html,
+    });
+    return { status: 200, body: { ok: true, provider: "smtp", id: info?.messageId || null, sent: events.length } };
+  }
+
   if (process.env.TRADE_EMAIL_WEBHOOK_URL) {
     const response = await fetch(process.env.TRADE_EMAIL_WEBHOOK_URL, {
       method: "POST",
@@ -350,7 +399,8 @@ async function sendTradeEmail({ to, events, appUrl, test }) {
     status: 501,
     body: {
       ok: false,
-      error: "Email alerts need RESEND_API_KEY plus TRADE_EMAIL_FROM, or TRADE_EMAIL_WEBHOOK_URL, in Vercel environment variables.",
+      error: "Email alerts need a delivery provider in Vercel: RESEND_API_KEY, or SMTP_HOST + SMTP_PORT + SMTP_USER + SMTP_PASS, or TRADE_EMAIL_WEBHOOK_URL.",
+      trade_email: tradeEmailStatus(),
     },
   };
 }
@@ -627,12 +677,21 @@ export default async function handler(req, res) {
 
     if (body.action === "trade_email") {
       const events = normalizeTradeEmailEvents(body.events);
-      const result = await sendTradeEmail({
-        to: body.to,
-        events,
-        appUrl: body.app_url,
-        test: Boolean(body.test),
-      });
+      let result;
+      try {
+        result = await sendTradeEmail({
+          to: body.to,
+          events,
+          appUrl: body.app_url,
+          test: Boolean(body.test),
+        });
+      } catch (err) {
+        return res.status(502).json({
+          ok: false,
+          error: err?.response || err?.message || "Email provider failed to send the alert.",
+          trade_email: tradeEmailStatus(),
+        });
+      }
       if (result.body?.ok) {
         await recordAuditEvent("TRADE_EMAIL_ALERT_SENT", {
           to_domain: String(body.to || "").split("@")[1] || null,

index.html

@@ -739,7 +739,7 @@ footer{margin-top:34px;padding-top:22px;border-top:1px solid var(--border);color
   </section>
 
   <footer>
-    Build agent-email-filters · Paper trading only · Live prices from Polymarket's public Gamma API · Not financial advice ·
+    Build email-provider-smtp · Paper trading only · Live prices from Polymarket's public Gamma API · Not financial advice ·
     <a class="market-link" href="https://github.com/theodore-song/polymarket-analyst" target="_blank" rel="noopener">Source on GitHub</a>
   </footer>
 </div>
@@ -796,6 +796,7 @@ let LIVE_MARKET_OFFSET = 0;
 let LIVE_MARKET_QUERY = "";
 let LIVE_BACKEND_STATUS = null;
 let LIVE_POLICY_STATUS = null;
+let TRADE_EMAIL_STATUS = null;
 let PERSONAL_TICKETS = [];
 let REAL_PORTFOLIO = {positions:[],fills:[]};
 let PERSONAL_CAPITAL = {account:{cash:0},allocations:[],events:[]};
@@ -833,6 +834,14 @@ async function initProviderConfig(){
     }
   }catch(e){}
 }
+async function refreshTradeEmailStatus(){
+  try{
+    const r=await fetch("/api/live",{cache:"no-store"});
+    const d=await r.json();
+    TRADE_EMAIL_STATUS=d&&d.trade_email?d.trade_email:null;
+  }catch(e){TRADE_EMAIL_STATUS=null;}
+  renderEmailAlerts();
+}
 
 /* ---------- the ten competing agents ----------
    Each shares the same frequently refreshed suggestions but ranks/sizes them differently. */
@@ -1974,9 +1983,15 @@ function renderEmailAlerts(){
     <label class="chip ${cfg.agents&&cfg.agents[a.id]?"active":""}" style="cursor:pointer;border-color:${cfg.agents&&cfg.agents[a.id]?a.color:""}">
       <input type="checkbox" data-email-agent="${esc(a.id)}" ${cfg.agents&&cfg.agents[a.id]?"checked":""} style="display:none"> ${a.emoji} ${esc(a.name)}
     </label>`).join("");
+  const providerLine=TRADE_EMAIL_STATUS
+    ? (TRADE_EMAIL_STATUS.configured
+      ? `Email backend ready via ${TRADE_EMAIL_STATUS.provider}.`
+      : `Email backend missing: add Resend, SMTP, or webhook env vars in Vercel.`)
+    : "Checking email backend...";
+  const sentLine=cfg.last_sent_at?` Last sent ${new Date(cfg.last_sent_at).toLocaleString()}.`:"";
   status.textContent=cfg.last_error
     ? `Last error: ${cfg.last_error}`
-    : (cfg.last_sent_at?`Last sent ${new Date(cfg.last_sent_at).toLocaleString()}.`:"Send a digest whenever selected agents open, close, stop out, or take gains during a cycle.");
+    : `${providerLine}${sentLine} Sends a digest whenever selected agents trade during a cycle.`;
   const readAlertForm=()=>{
     const email=input.value.trim();
     const events={};
@@ -2011,6 +2026,7 @@ function renderEmailAlerts(){
       equity:STARTING_BALANCE,
       return_pct:0,
     }],{test:true});
+    await refreshTradeEmailStatus();
     pushCloudState(true);
   };
   document.querySelectorAll("[data-email-event],[data-email-agent]").forEach(el=>el.onchange=()=>{
@@ -3564,6 +3580,7 @@ window.addEventListener("hashchange",()=>showTab(location.hash.slice(1)));
 /* ---------- Wire up ---------- */
 applyPersonalMode();
 initProviderConfig();
+refreshTradeEmailStatus();
 $("runBtn").addEventListener("click",async()=>{
   const btn=$("runBtn");btn.disabled=true;btn.textContent="Running…";
   try{const r=await runDailyCycle();const b=board();toast(r.busy?`Cycle already running · ${b[0].c.emoji} ${b[0].c.name} leads`:r.skipped?`Already ran this minute · ${b[0].c.emoji} ${b[0].c.name} leads`:`Cycle done · ${r.suggestions} ideas · ${b[0].c.emoji} ${b[0].c.name} leads`);renderAll();}

package-lock.json

@@ -7,6 +7,7 @@
       "dependencies": {
         "@neondatabase/serverless": "^1.1.0",
         "@vercel/blob": "2.5.0",
+        "nodemailer": "^9.0.3",
         "svix": "^1.96.1"
       }
     },
@@ -222,6 +223,15 @@
         "node": ">=6"
       }
     },
+    "node_modules/nodemailer": {
+      "version": "9.0.3",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-9.0.3.tgz",
+      "integrity": "sha512-n+YP+NKwR5zRWa60k3GiQ6Q3B4KXCoAw40dAKeCtYn020iNN74aWK2liXIC3ZEATeGql7we3tE3t8QwhY0eskw==",
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/npm-run-path": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-4.0.1.tgz",

package.json

@@ -2,6 +2,7 @@
   "dependencies": {
     "@neondatabase/serverless": "^1.1.0",
     "@vercel/blob": "2.5.0",
+    "nodemailer": "^9.0.3",
     "svix": "^1.96.1"
   }
 }