iP or domain name lookup

smtp.chinashuren.com Server iP：

Current resolution：

domain resolution record：

2019-07-17-----2019-07-17 157.255.245.108

2019-07-17-----2019-07-17 182.254.34.125

2019-07-17-----2019-07-17 113.96.208.92

2017-09-16-----2017-09-17 183.232.93.197

2017-09-17-----2017-09-17 183.232.125.184

2017-09-16-----2017-09-16 59.151.124.211

2017-09-16-----2017-09-16 163.177.90.125

2017-09-16-----2017-09-16 183.57.48.39

2017-09-16-----2017-09-16 14.17.57.217

2017-09-16-----2017-09-16 163.177.72.143