Forum Discussion
Solved
Outlook on smartphone issue
We're having an issue with outlook APP for Iphone and android as well. Exchange servers are NOT exposed to internet for OWA or Activesync services, they're only internally accessible. The environme...
- Yes, it's correct, you always have to point to the autodiscover on the On Prem server. In fact, Outlook for mobile uses Microsoft servers to resolve client autodiscovery. It is not the mobile which makes the discovery.
Hello Thierry,
So you are confirming the Outlook for IOS DOES require external connectivity, even if the activesync url should be resolved with internal server IP ?
The customer has a specific configuration in which the Smartphone APN is allowing the devices to be directly connected to internal network and resolve fqdn from internal DNS.
Is there a KB or microsoft article I can look at and share with the customer ?
thanks
So you are confirming the Outlook for IOS DOES require external connectivity, even if the activesync url should be resolved with internal server IP ?
The customer has a specific configuration in which the Smartphone APN is allowing the devices to be directly connected to internal network and resolve fqdn from internal DNS.
Is there a KB or microsoft article I can look at and share with the customer ?
thanks
Yes exactly. Because Outlook goes through Microsoft servers to query autodiscover. This does not depend on Active Sync. Other applications like Mail, Android Mail which use their own autodiscovery questioning system allow you to connect with ActiveSync without problem, which is not the case with Outlook for Mobile.
- Thierry_Chapuisat
As far as I know Autodiscover url, even in hybrid configuration, should always point to the Customer's On-Premise "public" IP address so it sound strange that "outlook form mobile" would search autodiscover in "microsoft's server" since they cannot for sure know nothing about the on-premise setup.- Yes, it's correct, you always have to point to the autodiscover on the On Prem server. In fact, Outlook for mobile uses Microsoft servers to resolve client autodiscovery. It is not the mobile which makes the discovery.