Cc:
Bcc:
Date: 19 Dec 2018 15:09:26 -0300
Subject: Delivery Status Notification (Failure)
The reason for the problem:
5.4.7 - Delivery expired (message too old) 'DNS Soft Error looking up
dominio.com (MX) while asking
recursive_nameserver2.parent. Error was: unable to reach nameserver on any valid IP'
Action: failed
Status: 5.0.0 (permanent failure)
Diagnostic-Code: smtp; 5.4.7 - Delivery expired (message too old) 'DNS Soft Error looking up
dominio.com (MX) while
asking recursive_nameserver2.parent. Error was: unable to reach nameserver on any valid IP' (delivery attempts: 0)