diff --git a/api/.env.example b/api/.env.example
index 1d568703..a408fcc6 100644
--- a/api/.env.example
+++ b/api/.env.example
@@ -2,3 +2,13 @@ PORT=3001
 DATABASE_URL=postgresql://postgres:postgres@localhost:5432/aoweb
 TOKEN_AUTH=changeme
 CORS_ORIGIN=http://localhost:3000
+
+# Site configuration
+SITE_URL=http://localhost:3000
+
+# Amazon SES (Password Reset emails)
+SES_REGION=us-east-1
+SES_ACCESS_KEY_ID=
+SES_SECRET_ACCESS_KEY=
+SES_FROM_EMAIL=noreply@aoweb.online
+SES_FROM_NAME="AOWeb"
diff --git a/api/src/lib/email.ts b/api/src/lib/email.ts
index 7d114dad..a6952382 100644
--- a/api/src/lib/email.ts
+++ b/api/src/lib/email.ts
@@ -10,8 +10,14 @@ type PasswordResetEmailInput = {
 let sesClient: SESv2Client | null = null;
 
 function getSesClient(): SESv2Client {
-  if (!config.sesRegion || !config.sesAccessKeyId || !config.sesSecretAccessKey || !config.sesFromEmail) {
-    throw new Error("Amazon SES no esta configurado");
+  const missing: string[] = [];
+  if (!config.sesRegion) missing.push("SES_REGION");
+  if (!config.sesAccessKeyId) missing.push("SES_ACCESS_KEY_ID");
+  if (!config.sesSecretAccessKey) missing.push("SES_SECRET_ACCESS_KEY");
+  if (!config.sesFromEmail) missing.push("SES_FROM_EMAIL");
+
+  if (missing.length > 0) {
+    throw new Error(`Amazon SES no esta configurado. Faltan variables: ${missing.join(", ")}`);
   }
 
   if (!sesClient) {