Sep 21, 2016 - Jul 24, 2017
| Name | First Seen |
|---|
| Name | First Seen | Last Seen |
|---|---|---|
| ns1.rocketmailserver.com | Sep 21, 2016 | Jul 24, 2017 |
| ns2.semanticagradual.com | Dec 03, 2016 | Jul 17, 2017 |
| ns2.fastbigmail.com | Sep 23, 2016 | Jun 03, 2017 |
| ns2.mkt522.com | Sep 23, 2016 | Dec 02, 2016 |
| ns2.rocketmailserver.com | Sep 21, 2016 | Nov 24, 2016 |