Microsoft have changed a few of the External IP’s for 365, so if you have limited the IP addresses that you can connect to , be sure to update your Firewall otherwise ADFS auth , 365 Portal , Azure AD will start to have issues after 05/06/2015!
To Remove
- 65.52.168.29
- 137.116.64.98
- 137.135.178.242
- 138.91.142.85
- 157.55.80.81
- 168.61.152.89
- 168.62.108.118
- 168.63.104.53
- 168.63.240.114
To Add
- 104.43.140.223
- 104.45.11.195
- 104.45.214.112
- 104.209.190.8
- 23.101.14.229
- 23.101.30.126
- 23.102.155.140
- 65.52.26.28
- 191.237.218.239