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After updating to Sophos Mobile 9.0.2 iOS devices are not able to synchronize emails anymore with the built-in email client if the internal EAS Proxy is used.
The issue seems to be caused by the switch from using HTTP/1 to HTTP/2.
This article describes the steps how to disable HTTP/2 on the Sophos Mobile server to get email synchronization working again.
The following sections are covered:
Applies to the following Sophos products and versions Sophos Mobile 9.0
To disable HTTP/2, perform the following steps:
After performing this change, email should start flowing again on the existing iOS devices.
For newly registered devices, the password prompt to complete the account creation may not occur.
A hotfix for this issue is available via Sophos support.
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