iP or domain name lookup

attachments.office365-net.cn Server iP：

Current resolution：

domain resolution record：

2020-06-19-----2023-01-09 40.73.164.194

2020-06-19-----2023-01-09 40.73.132.2

2020-06-19-----2023-01-09 40.73.164.130

2020-06-19-----2023-01-09 40.73.132.66

2022-11-29-----2023-01-09 42.159.172.130

2022-11-29-----2023-01-09 42.159.172.82

2022-12-21-----2023-01-09 42.159.45.2

2023-01-09-----2023-01-09 42.159.45.130

2019-12-04-----2022-10-08 42.159.40.2

2019-12-04-----2022-10-08 42.159.163.130

2019-12-04-----2022-10-08 42.159.40.66

2019-12-04-----2022-10-08 42.159.163.194