| SENDMAIL.ORG | MarkMonitor Inc. | ns1.proofpoint.com ns3.proofpoint.com pdns99.ultradns.org pdns99.ultradns.com pdns99.ultradns.net pdns99.ultradns.biz | 06.09.1995 | 05.09.2022 |
| SENDMAIL.COM | MarkMonitor Inc. | ns1.proofpoint.com ns3.proofpoint.com pdns99.ultradns.biz pdns99.ultradns.com pdns99.ultradns.net pdns99.ultradns.org | 11.03.1998 | 10.03.2023 |
| PROOFPOINT.COM | MarkMonitor Inc. | ns1.proofpoint.com ns3.proofpoint.com pdns99.ultradns.biz pdns99.ultradns.com pdns99.ultradns.net pdns99.ultradns.org | 08.08.2001 | 08.08.2022 |
| PPHOSTED.COM | MarkMonitor Inc. | ns1.proofpoint.com ns3.proofpoint.com pdns99.ultradns.biz pdns99.ultradns.com pdns99.ultradns.net pdns99.ultradns.org | 11.07.2007 | 11.07.2022 |
| PPE-HOSTED.COM | MarkMonitor Inc. | ns1.proofpoint.com ns3.proofpoint.com pdns99.ultradns.biz pdns99.ultradns.com pdns99.ultradns.net pdns99.ultradns.org | 04.09.2013 | 04.09.2021 |