iP or domain name lookup

smtp.gcp.edu.cn Server iP：

Current resolution：

domain resolution record：

2021-12-12-----2021-12-12 183.2.143.59

2021-12-12-----2021-12-12 112.53.42.125

2021-12-12-----2021-12-12 14.22.3.39

2021-12-12-----2021-12-12 112.90.80.126

2021-12-12-----2021-12-12 14.22.9.228

2021-12-12-----2021-12-12 112.60.20.192

2021-12-12-----2021-12-12 119.147.6.245

2021-12-12-----2021-12-12 119.147.3.196

2021-12-12-----2021-12-12 157.148.45.129

2021-12-12-----2021-12-12 109.244.196.69

2021-12-12-----2021-12-12 101.32.113.90