| Date | IP Address |
| 2019-11-29 | 93.93.116.47 (ClassC) |
| 2024-09-07 | 156.235.100.78 (ClassC) |
| 2026-02-23 | 84.32.84.32 (ClassC) |
| Date | Domain | IP |
| smtp1.fersec.com | 2024-09-30 | 156.235.100.78 |
| mail2.fersec.com | 2024-09-09 | 156.235.100.78 |
| smtp2.fersec.com | 2024-09-12 | 156.235.100.78 |
| pop3.fersec.com | 2024-09-05 | 156.235.100.78 |
| auth.fersec.com | 2024-09-25 | 156.235.100.78 |
| smtpauth.fersec.com | 2024-09-30 | 156.235.100.78 |
| mail.fersec.com | 2024-11-11 | 156.235.100.78 |
| email.fersec.com | 2024-08-08 | 156.235.100.78 |
| ftp.fersec.com | 2024-10-28 | 156.235.100.78 |
| smtp.fersec.com | 2024-10-23 | 156.235.100.78 |
| authsmtp.fersec.com | 2024-07-06 | 156.235.100.78 |
| mailhost.fersec.com | 2024-11-08 | 156.235.100.78 |
| www.fersec.com | 2024-09-26 | 156.235.100.78 |
| mailx.fersec.com | 2024-09-18 | 156.235.100.78 |
| mx.fersec.com | 2024-10-09 | 156.235.100.78 |
| relay.fersec.com | 2024-11-04 | 156.235.100.78 |