diff --git a/packages/auth/src/config.ts b/packages/auth/src/config.ts
index 09d6234..a3fd79e 100644
--- a/packages/auth/src/config.ts
+++ b/packages/auth/src/config.ts
@@ -96,18 +96,16 @@ export const authConfig: NextAuthConfig = {
         const { createTransport } = await import("nodemailer");
         const transport = createTransport(provider.server);
 
-        // Parse the NextAuth callback URL to extract token and callbackUrl
         const parsedUrl = new URL(url);
         const host = parsedUrl.host;
-        const token = parsedUrl.searchParams.get("token") || "";
-        const callbackUrl = parsedUrl.searchParams.get("callbackUrl") || "/dashboard";
 
         // Build an intermediate /verify URL that prevents email scanners
-        // from consuming the one-time token via pre-fetch GET requests
+        // from consuming the one-time token via pre-fetch GET requests.
+        // We pass the ENTIRE original callback URL encoded to avoid
+        // dropping any parameters NextAuth needs internally.
         const verifyUrl = new URL("/verify", parsedUrl.origin);
-        verifyUrl.searchParams.set("token", token);
+        verifyUrl.searchParams.set("callback", Buffer.from(url).toString("base64"));
         verifyUrl.searchParams.set("email", identifier);
-        verifyUrl.searchParams.set("callbackUrl", callbackUrl);
         const safeUrl = verifyUrl.toString();
 
         const result = await transport.sendMail({
diff --git a/sites/mainweb/app/(portal)/verify/page.tsx b/sites/mainweb/app/(portal)/verify/page.tsx
index b489255..b64e07c 100644
--- a/sites/mainweb/app/(portal)/verify/page.tsx
+++ b/sites/mainweb/app/(portal)/verify/page.tsx
@@ -8,20 +8,22 @@ function VerifyContent() {
     const searchParams = useSearchParams();
     const [verifying, setVerifying] = useState(false);
 
-    // Build the actual NextAuth callback URL from the search params
-    const callbackUrl = searchParams?.get('callbackUrl') || '/dashboard';
-    const token = searchParams?.get('token') || '';
+    // The full NextAuth callback URL is base64-encoded in the 'callback' param
+    const encodedCallback = searchParams?.get('callback') || '';
     const email = searchParams?.get('email') || '';
 
+    let callbackUrl = '';
+    try {
+        callbackUrl = atob(encodedCallback);
+    } catch {
+        // invalid base64
+    }
+
     const handleVerify = () => {
+        if (!callbackUrl) return;
         setVerifying(true);
-        // Redirect to the actual NextAuth email callback
-        const params = new URLSearchParams({
-            callbackUrl,
-            token,
-            email,
-        });
-        window.location.href = `/api/auth/callback/nodemailer?${params.toString()}`;
+        // Redirect to the exact original NextAuth callback URL
+        window.location.href = callbackUrl;
     };
 
     return (
@@ -55,16 +57,16 @@ function VerifyContent() {
             <div className="relative z-10">
                 <button
                     onClick={handleVerify}
-                    disabled={verifying || !token}
+                    disabled={verifying || !callbackUrl}
                     className="px-12 py-5 bg-gradient-to-r from-emerald-600 to-emerald-500 text-white font-black text-xs uppercase tracking-[0.3em] hover:from-emerald-500 hover:to-emerald-400 transition-all rounded-lg shadow-[0_0_30px_rgba(16,185,129,0.2)] disabled:opacity-30 active:scale-95"
                 >
                     {verifying ? 'Verifying...' : 'Complete Sign In'}
                 </button>
             </div>
 
-            {!token && (
+            {!callbackUrl && (
                 <p className="relative z-10 mt-8 text-red-500/70 font-mono text-xs">
-                    Error: No verification token found. Please request a new sign-in link.
+                    Error: Invalid or missing verification link. Please request a new sign-in link.
                 </p>
             )}