iP or domain name lookup

mail.rex-electric.com Server iP：

Current resolution：

domain resolution record：

2023-04-13-----2023-09-12 129.226.106.19

2023-04-13-----2023-09-12 112.90.80.23

2023-04-13-----2023-09-12 81.71.56.226

2023-04-13-----2023-04-13 14.17.5.207

2019-08-09-----2020-12-02 163.177.89.176

2019-08-09-----2020-12-02 183.232.94.57

2019-08-09-----2020-12-02 113.96.233.160

2020-12-02-----2020-12-02 121.51.176.76

2019-08-09-----2019-12-06 182.254.38.92

2016-11-25-----2017-04-03 221.131.229.54