| Date | IP Address |
| 2012-12-27 | 147.202.59.88 (ClassC) |
| 2012-12-27 | 147.202.90.254 (ClassC) |
| 2013-09-01 | 64.38.7.108 (ClassC) |
| 2025-01-30 | 173.255.206.62 (ClassC) |
| Date | Domain | IP |
| loadbalancing.msexchange.org | 2014-05-19 | 64.94.136.5 |
| antispam.msexchange.org | 2024-04-10 | 96.45.83.240 |
| whitepapers.msexchange.org | 2024-07-17 | 96.45.83.40 |