iP or domain name lookup

smtp.email.ncu.edu.cn Server iP：

Current resolution：

domain resolution record：

2023-06-12-----2023-12-08 101.32.113.90

2023-06-12-----2023-12-08 124.156.190.79

2023-06-12-----2023-09-12 112.90.80.126

2023-09-12-----2023-09-12 14.22.3.51

2023-09-12-----2023-09-12 120.232.27.164

2023-09-12-----2023-09-12 119.147.6.199

2023-09-12-----2023-09-12 157.148.45.129

2023-09-12-----2023-09-12 183.2.143.59

2023-09-12-----2023-09-12 119.147.6.245

2023-09-12-----2023-09-12 119.147.3.176

2023-09-12-----2023-09-12 14.22.9.228

2023-09-12-----2023-09-12 112.60.20.192

2023-09-12-----2023-09-12 14.22.3.39