diff --git a/db/changes/230401/00-updateIsToBeMailed.sql b/db/changes/230401/00-updateIsToBeMailed.sql
new file mode 100644
index 000000000..c04090663
--- /dev/null
+++ b/db/changes/230401/00-updateIsToBeMailed.sql
@@ -0,0 +1,6 @@
+UPDATE vn.client
+    SET isToBeMailed = FALSE
+    WHERE
+        mailAddress is NULL
+        AND email is NULL
+        AND isToBeMailed = TRUE;
diff --git a/loopback/locale/es.json b/loopback/locale/es.json
index d65054f37..1bf6c18f0 100644
--- a/loopback/locale/es.json
+++ b/loopback/locale/es.json
@@ -259,5 +259,6 @@
 	"Try again": "Vuelve a intentarlo",
 	"Aplicación bloqueada por el usuario 9": "Aplicación bloqueada por el usuario 9",
 	"Failed to upload file": "Error al subir archivo",
-	"The DOCUWARE PDF document does not exists": "The DOCUWARE PDF document does not exists"
+	"The DOCUWARE PDF document does not exists": "The DOCUWARE PDF document does not exists",
+	"There is no assigned email for this client": "No hay correo asignado para este cliente"
 }
diff --git a/modules/client/back/models/client.js b/modules/client/back/models/client.js
index e07993f79..2d8e7bd27 100644
--- a/modules/client/back/models/client.js
+++ b/modules/client/back/models/client.js
@@ -141,6 +141,16 @@ module.exports = Self => {
         done();
     }
 
+    Self.validateAsync('isToBeMailed', isToBeMailed, {
+        message: 'There is no assigned email for this client'
+    });
+
+    function isToBeMailed(err, done) {
+        if (this.isToBeMailed == true && !this.email)
+            err();
+        done();
+    }
+
     Self.validateAsync('defaultAddressFk', isActive,
         {message: 'Unable to default a disabled consignee'}
     );