diff --git a/defs.py b/defs.py
index 13dcd64..1fd55eb 100644
--- a/defs.py
+++ b/defs.py
@@ -66,13 +66,14 @@ class MISPAlertManager:
                     # Configuración de la cuenta de Office 365 y del servidor SMTP
                     smtp_server = settings.EMAIL_CONFIG['server_smtp_host']
                     smtp_port = settings.EMAIL_CONFIG['server_smtp_port']
-                    from_address = settings.EMAIL_CONFIG['smtp_username']
+                    smtp_user = settings.EMAIL_CONFIG['smtp_username']
+                    from_address = settings.EMAIL_CONFIG['smtp_sender']
                     to_address = settings.EMAIL_CONFIG['email_recipient']
                     password = settings.EMAIL_CONFIG['smtp_password']
 
                     # Crear el mensaje
                     msg = MIMEMultipart()
-                    msg["From"] = settings.EMAIL_CONFIG['smtp_username']  # Dirección 'from'
+                    msg["From"] = settings.EMAIL_CONFIG['smtp_sender']  # Dirección 'from'
                     msg["To"] = to_address
                     msg["Subject"] = settings.EMAIL_CONFIG['email_subject']
 
@@ -275,7 +276,7 @@ class MISPAlertManager:
                         server.starttls()  # Habilitar cifrado TLS
                     
                     # Iniciar sesión en el servidor
-                    server.login(from_address, password)
+                    server.login(smtp_user, password)
 
                     # Enviar el correo
                     server.sendmail(from_address, to_address, msg.as_string())
diff --git a/settings.py b/settings.py
index 8e55ee1..98d274d 100644
--- a/settings.py
+++ b/settings.py
@@ -31,6 +31,7 @@ EMAIL_CONFIG = {
     'server_smtp_port': 587,
     'smtp_username': '<SMTP USERNAME>',
     'smtp_password': '<SMTP PASSWORD>',
+    'smtp_sender': '<SMTP EMAIL FROM>',
     'email_recipient':'<SMTP EMAIL TO>',
     'tls': True, # si utiliza TLS, sino False
     'email_subject':'<EMAIL SUBJECT>',