SYMPTOMS

When navigating within the web mail interface between folders the interface locks up on the "loading messages" dialog. 

CAUSE

The issue may occur because of low memory conditions where .NET is clearing a cache MailEnable web mail uses to identify the connected user.

RESOLUTION

• Navigate to the following MailEnable installation path: Mail Enable\BIN\NetWebmail.
• Open up the "Web.config" file within Windows Notepad.
• Add the following within the "system.web" section:

<caching>

<cache disableMemoryCollection = "true" disableExpiration = "false" privateBytesLimit = "0" percentagePhysicalMemoryUsedLimit = "90" privateBytesPollTime = "00:02:00"/>

</caching>