iP or domain name lookup

smtp.email.ncu.edu.cn Server iP：

Current resolution：

domain resolution record：

2023-06-12-----2025-03-16 101.32.113.90

2023-06-12-----2025-03-16 124.156.190.79

2023-06-12-----2025-03-09 112.90.80.126

2023-09-12-----2025-03-09 14.22.3.51

2023-09-12-----2025-03-09 120.232.27.164

2023-09-12-----2025-03-09 119.147.6.199

2023-09-12-----2025-03-09 183.2.143.59

2023-09-12-----2025-03-09 157.148.45.129

2023-09-12-----2025-03-09 14.22.9.228

2023-09-12-----2025-03-09 119.147.3.176

2023-09-12-----2025-03-09 112.60.20.192

2023-09-12-----2025-03-09 14.22.3.39

2025-03-09-----2025-03-09 157.255.202.11

2025-03-09-----2025-03-09 157.148.36.163

2025-03-09-----2025-03-09 119.147.3.196

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