Forum Discussion
Exchange Front Door location
David_Petree@GBoswellSimivalley we are seeing this as well. Please post any fixes or workarounds that you are able to find. We set our Public DNS to 1.1.1.1 or 9.9.9.9 and about half the time it works and pulls from the US front door closest to us, the other half of the time it pulls from Australia.
cwallrqn Microsoft support has been COMPLETELY USELESS in regards to this problem. I have users who hate cached mode because they have to wait 5-10 minutes for an email to come through.
The potential fixes we have discussed are:
1. using Azure DNS rather than cloudflair
2. Setting a VPN tunnel up - we have a tunnel going to AWS via 'AWS Direct Connect' but I can't find if Microsoft offers a service like this
Not sure either would fix the problem. I'm annoyed that Microsoft support comes back with a lame answer of 'Your data is in the USA", I'm aware of that! They are routing me through Australia or Chicago to get to my data that i'm pretty sure resides in San Jose.
- https://docs.microsoft.com/en-US/microsoft-365/enterprise/office-365-network-mac-perf-insights?WT.mc_id=365AdminCSH_inproduct&view=o365-worldwide#use-of-a-non-optimal-exchange-online-service-front-door
