D3D1C45BF     16786 Mon Oct 15 13:58:30  customer@ourdomain.com
(host relay.verizon.net[206.46.232.11] refused to talk to me: 571 Email from 127.0.0.1 is currently blocked by Verizon Online's anti-spam system. The email sender or Email Service Provider may visit http://www.verizon.net/whitelist and request removal of the block. 121017)
                                         destination@domain.com

1C9C247E2      5306 Mon Oct 15 20:38:02  customer@ourdomain.com
(host hrndva-smtpin02.mail.rr.com[71.74.56.244] refused to talk to me: 554 5.7.1 - ERROR: Mail refused - <127.0.0.1> - See http://postmaster.rr.com/amIBlockedByRR?ip=127.0.0.1)
                                         destination@domain.com

1B9C247E2      5306 Mon Oct 15 20:39:01  customer@ourdomain.com
(host hrndva-smtpin02.mail.rr.com[71.74.56.244] refused to talk to me: 554 5.7.1 - ERROR: Mail refused - <127.0.0.1> - See http://postmaster.rr.com/amIBlockedByRR?ip=127.0.0.1)
                                         destination2@domain.com

And generate this:
2 1C9C247E2      5306 Mon Oct 15 20:38:02  customer@ourdomain.com
                                           destination@domain.com

  1B9C247E2      5306 Mon Oct 15 20:39:01  customer@ourdomain.com
                                           destination2@domain.com

1 D3D1C45BF     16786 Mon Oct 15 13:58:30  customer@ourdomain.com
                                           destination@domain.com