| Date | IP Address |
| 2021-02-12 | 117.28.254.172 (ClassC) |
| 2026-02-21 | 170.33.12.185 (ClassC) |
| Date | Domain | IP |
| imap2.tuidao.com.cn | 2025-09-26 | 170.33.12.185 |
| exchange.tuidao.com.cn | 2025-09-26 | 170.33.12.185 |
| email.tuidao.com.cn | 2025-09-30 | 170.33.12.185 |
| m.tuidao.com.cn | 2025-09-26 | 170.33.12.185 |
| spam.tuidao.com.cn | 2026-02-21 | 170.33.12.185 |
| imap.tuidao.com.cn | 2025-09-26 | 170.33.12.185 |
| ftp.tuidao.com.cn | 2025-09-26 | 170.33.12.185 |
| mailserver.tuidao.com.cn | 2025-10-04 | 170.33.12.185 |
| mailhost.tuidao.com.cn | 2025-09-26 | 170.33.12.185 |
| mailout.tuidao.com.cn | 2025-09-11 | 170.33.12.185 |