diff --git a/package-lock.json b/package-lock.json
index cde009b..a84eda7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,6 +22,7 @@
         "jsonwebtoken": "^9.0.3",
         "morgan": "^1.10.1",
         "multer": "^2.1.1",
+        "nodemailer": "^8.0.10",
         "nodemon": "^3.1.14",
         "pg": "^8.19.0",
         "resend": "^6.12.4",
@@ -4310,6 +4311,15 @@
         "node-gyp-build-test": "build-test.js"
       }
     },
+    "node_modules/nodemailer": {
+      "version": "8.0.10",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-8.0.10.tgz",
+      "integrity": "sha512-BLFuSth7QtHOkBzyqTehWWyub0NTRDuK2Q2SQfnGLsrJnzyU+Yeh4WpV1eZGuARFj1xQJHIdnTuJZLP+b9R1GQ==",
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/nodemon": {
       "version": "3.1.14",
       "resolved": "https://registry.npmjs.org/nodemon/-/nodemon-3.1.14.tgz",
diff --git a/package.json b/package.json
index 5c9c634..6d4689b 100644
--- a/package.json
+++ b/package.json
@@ -44,6 +44,7 @@
     "jsonwebtoken": "^9.0.3",
     "morgan": "^1.10.1",
     "multer": "^2.1.1",
+    "nodemailer": "^8.0.10",
     "nodemon": "^3.1.14",
     "pg": "^8.19.0",
     "resend": "^6.12.4",
diff --git a/src/lib/email.service.js b/src/lib/email.service.js
index 62ab507..4dc4ddf 100644
--- a/src/lib/email.service.js
+++ b/src/lib/email.service.js
@@ -1,13 +1,22 @@
-import { Resend } from "resend";
+import nodemailer from "nodemailer";
 
 export const sendPasswordResetEmail = async (email, token) => {
-    const resend = new Resend(process.env.RESEND_API_KEY);
+    const transporter = nodemailer.createTransport({
+        host: process.env.EMAIL_HOST,
+        port: parseInt(process.env.EMAIL_PORT || "587"),
+        secure: false,
+        auth: {
+            user: process.env.EMAIL_USER,
+            pass: process.env.EMAIL_PASS,
+        },
+    });
+
     const frontendUrl = process.env.FRONTEND_URL || "http://localhost:5173";
     const resetUrl = `${frontendUrl}/restablecer-contrasena/${token}`;
-    const from = process.env.RESEND_FROM_EMAIL || "OpenMarket <onboarding@resend.dev>";
+    const from = process.env.EMAIL_FROM;
 
-    const { error } = await resend.emails.send({
-        from,
+    await transporter.sendMail({
+        from: `"OpenMarket" <${from}>`,
         to: email,
         subject: "Recuperación de contraseña",
         html: `
@@ -26,8 +35,4 @@ export const sendPasswordResetEmail = async (email, token) => {
             </div>
         `,
     });
-
-    if (error) {
-        throw new Error(`Error al enviar el correo de recuperación: ${error.message}`);
-    }
 };
diff --git a/src/modules/global/dtos/commerce/store.request.dto.js b/src/modules/global/dtos/commerce/store.request.dto.js
index 89b373b..202cfd3 100644
--- a/src/modules/global/dtos/commerce/store.request.dto.js
+++ b/src/modules/global/dtos/commerce/store.request.dto.js
@@ -58,8 +58,8 @@ export const CreateStoreDTO = z
       .min(1, "address no puede estar vacío"),
     latitude: z.number({ error: "latitude es requerido" }),
     longitude: z.number({ error: "longitude es requerido" }),
-    base_price: z.number({ error: "base_price es requerido" }).nonnegative("base_price no puede ser negativo"),
-    distance_price: z.number({ error: "distance_price es requerido" }).nonnegative("distance_price no puede ser negativo")
+    base_price: z.number({ error: "base_price es requerido" }).nonnegative("base_price no puede ser negativo").max(99999999.99, "base_price supera el valor máximo permitido"),
+    distance_price: z.number({ error: "distance_price es requerido" }).nonnegative("distance_price no puede ser negativo").max(99999999.99, "distance_price supera el valor máximo permitido")
   });
 
 // ─── UPDATE ──────────────────────────────────────────────────────
@@ -113,8 +113,8 @@ export const UpdateStoreDTO = z
     address: z.string().min(1, "address no puede estar vacío").optional(),
     latitude: z.number().optional(),
     longitude: z.number().optional(),
-    base_price: z.number().nonnegative("base_price no puede ser negativo").optional(),
-    distance_price: z.number().nonnegative("distance_price no puede ser negativo").optional()
+    base_price: z.number().nonnegative("base_price no puede ser negativo").max(99999999.99, "base_price supera el valor máximo permitido").optional(),
+    distance_price: z.number().nonnegative("distance_price no puede ser negativo").max(99999999.99, "distance_price supera el valor máximo permitido").optional()
   })
   .refine(
     (data) => Object.values(data).some((value) => value !== undefined),