Dec 22, 2016 - May 11, 2017
| Name | First Seen |
|---|
| Name | First Seen | Last Seen |
|---|---|---|
| ns1.towermailinfo.net | Jan 25, 2017 | May 11, 2017 |
| ns2.towermailinfo.net | Jan 25, 2017 | May 11, 2017 |
| ns1.sendhappen.com | Jan 25, 2017 | May 11, 2017 |
| ns1.benefitshealthmailer.com | Mar 08, 2017 | May 03, 2017 |
| ns2.benefitshealthmailer.com | Mar 08, 2017 | May 03, 2017 |
| ns1.insendingsecure.org | Dec 22, 2016 | Jan 24, 2017 |
| ns2.insendingsecure.org | Dec 22, 2016 | Jan 24, 2017 |