Background: I do some work for a company of about 50+ and they mostly run iPhones 5/5s. On Saturday they it appears that their Office365 Exchange accounts stopped working when access via 2degree's mobile data. Connected to WiFi would work fine. Now I would this was a random fault if on 1 or 2 iPhones but so far were up to 8+ users.
If we use these phones to connect via personal hotspot, the fault seem to replicate in Outlook for Mac... I have also tested connecting to my Vodafone connected iPhone and it works fine. To further test this, while on 2degree's hotspot, changing the DNS from 2degrees (phone provided) to say Google's DNS then Outlook will then connect.
I have tested a couple of different Office365 exchange accounts and all end with the same fault.
Has anyone else run into this?
It appears that most other mail providers, GMail, iCloud etc are still working fine.