diff --git a/mayordomo/__init__.py b/mayordomo/__init__.py
index 5670bac..caa0f48 100644
--- a/mayordomo/__init__.py
+++ b/mayordomo/__init__.py
@@ -134,7 +134,7 @@ async def enviarCorreosDominio(dominioid):
 							mail2send = Parser(policy=default).parsestr(carta.contenido)						
 							signature = dkim.sign(carta.contenido.encode(), b'mayordomo', b'ilab.cl', dkimKey, include_headers=[b'from', b'to', b'subject', b'message-id']).decode()
 							
-							mail2send['DKIM-Signature'] = signature[len("DKIM-Signature: "):]
+							mail2send['DKIM-Signature'] = signature[len("DKIM-Signature: "):].strip()
 							
 							await smtp.sendmail(remitente.direccion, rcpt_to, mail2send.encode('utf-8'))