iP or domain name lookup

mail.saac.gov.cn Server iP：

Current resolution：

domain resolution record：

2022-11-07-----2023-10-23 103.129.255.182

2023-10-23-----2023-10-23 45.254.48.78

2023-10-23-----2023-10-23 117.147.199.46

2023-10-23-----2023-10-23 183.136.182.15

2022-11-07-----2022-11-07 106.38.232.65

2022-11-07-----2022-11-07 101.71.155.40

2019-09-13-----2020-12-28 220.194.24.216

2020-12-28-----2020-12-28 220.181.72.247

2019-09-13-----2019-09-13 220.181.72.229