From: Mail Delivery Subsystem <MAILER-DAEMON@columbia.edu> Sent: Saturday, August 18, 2012 4:40 PM To: jeevacation@gmail.com Subject: Warning: could not send message for past 4 hours Attachments: details.txt; Untitled attachment 00082.txt • • THIS IS A WARNING MESSAGE ONLY •" • • YOU DO NOT NEED TO RESEND YOUR MESSAGE •• The original message was received at Sat, 18 Aug 2012 08:32:09 -0400 from 1128.59.28.1701 Host malanga.cc.columbia.edu reports the errors below Transcript of session follows while talking to localhost: >>> DATA «< 451 4.4.3 Remote server unavailable unavailable < Warning: message still undelivered after 4 hours Will keep trying until message is 2 days old >... Deferred: 451 4.4.3 Remote server unavailable «< 451 4.4.3 Remote server >... Deferred: 451 4.4.3 Remote server unavailable 1 EFTA_R1_01438869 EFTA02401868