Sophos Mobile Control
4 External EAS Proxy server
With Sophos Mobile Control you can set up an external EAS Proxy server with several instances.
Sophos Mobile Control offers a separate EAS Proxy. You can download the installer from the
Sophos Mobile Control web console. For further information, see Download external EAS Proxy installer
(page 25).
Features
Besides the features of the internal EAS Proxy, the external EAS Proxy offers the following features:
■
Lotus Traveler client support (which is not ActiveSync)
■
Support for multiple Microsoft Exchange and Lotus Traveler servers (one instance per mail server, one TCP port per instance)
Usage scenarios
Note: For Sophos Mobile Control as a Service, the following scenarios do not apply. In this scenario, the EAS Proxy server is suitable for installation in your own environment because the
EAS Proxy communicates through HTTPS with the Sophos Mobile Control Server. For further information on Sophos Mobile Control as a Service, refer to the Sophos Mobile Control as a
Service startup guide.
An external EAS Proxy server should be used for the following scenarios:
■
You use Lotus Traveler for non-iOS devices.
The internal EAS Proxy cannot handle this scenario as Active Sync is not used here.
The internal EAS Proxy supports iOS devices for Lotus Traveler as Traveler supports ActiveSync for iOS only. So for iOS devices you do not need to use the external EAS Proxy.
For other platforms (for example, Android), Lotus Notes Traveler is supported by the external
EAS Proxy. For these platforms, a dedicated Traveler client software is required. This software is available through <traveler-server>/servlet/traveler or the Traveler file system. Sophos
Mobile Control can install and uninstall the client software. Configuration has to be done manually.
22
Installation guide
■
You want to support multiple backend servers.
With the external EAS Proxy you can set up multiple instances of backend mail systems. Each instance needs an incoming TCP port. Each port can connect to a different backend.You need one URL per EAS instance.
23
Sophos Mobile Control
■
You want to set up load balancing for EAS
For this scenario an existing load balancer for http is required. You set up the external EAS
Proxy on different machines.
24
Setup
The following applies to installation and setup:
■
The external EAS Proxy can be installed on the same server, but needs to listen on different ports.
