From: MAILER-DAEMON@sbox.slsware.lan (Mail Delivery System)Subject: Undelivered Mail Returned to SenderDate: July 13, 2015 at 6:46:30 AM MDTTo: root@sbox.slsware.lanThis is the mail system at host sbox.slsware.lan.I'm sorry to have to inform you that your message could notbe delivered to one or more recipients. It's attached below.
Diagnostic-Code: X-Postfix; connect to pinel.debian.org[2001:41c8:1000:21::21:42]:25: Network is unreachable