iP or domain name lookup

smtp.mx660.now.net.cn Server iP：

Current resolution：

domain resolution record：

2023-10-10-----2023-10-10 123.1.189.243

2023-10-10-----2023-10-10 156.244.244.24

2023-10-10-----2023-10-10 156.244.244.64

2018-01-15-----2023-05-28 210.16.190.213

2018-06-06-----2023-05-28 218.241.17.107

2020-01-11-----2023-05-28 103.214.56.25

2022-05-16-----2023-05-28 118.244.206.155

2022-05-16-----2023-05-28 203.135.96.149

2022-05-16-----2023-05-28 210.16.190.240

2023-01-04-----2023-05-28 210.16.190.209

2023-05-28-----2023-05-28 114.80.154.194

2018-01-15-----2023-03-23 218.241.17.153

2020-07-23-----2023-03-23 210.16.190.249

2021-01-13-----2023-03-23 103.214.56.50

2023-01-04-----2023-01-04 210.16.190.144

2018-01-15-----2022-05-16 125.88.169.204

2019-10-02-----2021-02-23 210.16.190.210

2020-02-14-----2021-02-23 222.73.22.250

2018-06-06-----2020-12-21 103.214.56.13

2018-01-15-----2020-05-09 183.2.242.130

2019-10-02-----2020-05-09 111.19.253.125

2018-01-15-----2020-02-17 118.244.196.34

2018-06-06-----2018-06-06 112.65.242.170

2018-06-06-----2018-06-06 210.16.188.51

2018-06-06-----2018-06-06 210.209.68.108