Knowledge Base

XWEB: OWA Error: "The proxy server has encountered an error"

Article ID: 194411

Article Last Modified on 10/28/2006

Microsoft Outlook Web Access 5.5
Microsoft Exchange Server 5.5 Service Pack 1
Microsoft Exchange Server 5.5 Standard Edition

This article was previously published under Q194411

SYMPTOMS

When you attempt to send an attachment with a message using the Outlook Web Access client, the following error may occur:

HTTP Proxy Reports: The proxy server has encountered an error (software
caused connection to abort).

CAUSE

By default, the option "Do not use proxy server for local addresses" is not selected in Internet Explorer. This causes the browser to use the proxy server for the local Outlook Web Access server.

WORKAROUND

To work around this problem, when you set up the proxy configuration for Internet Explorer, select the "Do not use Proxy Server for local addresses" option on the Connection settings tab.

Keywords: kbbug kbpending KB194411