May 21, 2013 - Jan 21, 2014
| Name | First Seen |
|---|
| Name | First Seen | Last Seen |
|---|---|---|
| ns1.smtptravel.com | May 28, 2013 | Jan 21, 2014 |
| ns2.smtptravel.com | May 28, 2013 | Jan 21, 2014 |
| ns1.smtp-bulkmass.com | May 21, 2013 | May 27, 2013 |
| ns2.smtp-bulkmass.com | May 21, 2013 | May 27, 2013 |