-Queue ID-  --Size-- ----Arrival Time---- -Sender/Recipient-------
638CB117179    6941 Tue Aug 16 06:00:39  MAILER-DAEMON
     (connect to mtasvr02.viettel.vn[203.113.188.20]:25: Connection timed out)
                                         baxhoratorical@viettel.vn

6907310CF40    5506 Fri Aug 12 14:31:29  MAILER-DAEMON
  (connect to em4509.isoc.org[2606:4700::6812:ab1]:25: Network is unreachable)
                                         bounces+8813378-4300-isoc=simkin.org@em4509.isoc.org

-- 12 Kbytes in 2 Requests.