| Date | IP Address |
| 2021-03-13 | 205.186.183.111 (ClassC) |
| 2025-05-30 | 104.21.64.1 (ClassC) |
| 2025-06-14 | 104.21.96.1 (ClassC) |
| 2025-07-12 | 104.21.32.1 (ClassC) |
| 2026-02-02 | 172.67.187.135 (ClassC) |
| Date | Domain | IP |
| mail1.writingcompetitions.net | 2024-11-09 | 172.67.187.135 |
| imap1.writingcompetitions.net | 2025-05-30 | 104.21.64.1 |
| ms1.writingcompetitions.net | 2024-11-09 | 172.67.187.135 |
| exchange.writingcompetitions.net | 2024-03-11 | 172.67.187.135 |
| email.writingcompetitions.net | 2024-09-19 | 104.21.7.64 |
| authsmtp.writingcompetitions.net | 2025-04-07 | 104.21.48.1 |
| mailer.writingcompetitions.net | 2025-02-06 | 104.21.112.1 |
| mailserver.writingcompetitions.net | 2024-12-16 | 104.21.7.64 |
| mx.writingcompetitions.net | 2024-11-09 | 104.21.7.64 |
| gateway.writingcompetitions.net | 2025-05-15 | 104.21.16.1 |