| Date | IP Address |
| 2021-01-13 | 202.182.126.139 (ClassC) |
| 2025-08-03 | 172.67.180.67 (ClassC) |
| 2026-02-12 | 104.21.18.38 (ClassC) |
| Date | Domain | IP |
| smtp2.swapjapan.com | 2025-10-16 | 172.67.180.67 |
| mx2.swapjapan.com | 2025-09-13 | 172.67.180.67 |
| mail6.swapjapan.com | 2025-10-16 | 172.67.180.67 |
| posta.swapjapan.com | 2025-09-22 | 172.67.180.67 |
| owa.swapjapan.com | 2025-08-03 | 104.21.18.38 |
| smtp.comune.swapjapan.com | 2025-08-03 | 172.67.180.67 |
| ipe.swapjapan.com | 2025-10-16 | 104.21.18.38 |
| outmail.swapjapan.com | 2025-09-20 | 172.67.180.67 |
| vmail.swapjapan.com | 2025-10-16 | 172.67.180.67 |
| ssl.swapjapan.com | 2025-10-16 | 104.21.18.38 |
| spam.swapjapan.com | 2025-07-28 | 172.67.180.67 |
| antispam.swapjapan.com | 2025-10-16 | 104.21.18.38 |
| imap.swapjapan.com | 2025-10-16 | 104.21.18.38 |
| art.swapjapan.com | 2025-10-16 | 172.67.180.67 |
| srv.swapjapan.com | 2025-09-22 | 172.67.180.67 |
| mailx.swapjapan.com | 2025-10-31 | 172.67.180.67 |
| box.swapjapan.com | 2025-10-16 | 104.21.18.38 |
| mailrelay.swapjapan.com | 2025-10-16 | 172.67.180.67 |
| gateway.swapjapan.com | 2025-10-16 | 104.21.18.38 |