"The message could not be opened" appears when opening a Zero download message using Outlook Web Access (OWA)

- Updated:
- 24 Nov 2016
- Product/Version:
- Encryption for Email 5.7
- Encryption for Email 5.8
- Encryption for Email 5.9
- Trend Micro Email Encryption Hosted 5.0
- Platform:
- Windows 2000 Advanced Server
- Windows 2000 Datacenter Server
- Windows 2000 Professional
- Windows 2000 Server
- Windows 2000 Small Business Server
- Windows 2003 Compute Cluster Server
- Windows 2003 Datacenter Server
- Windows 2003 Datacenter Server Edition 64-bit
- Windows 2003 Enterprise Server
- Windows 2003 Home Server
- Windows 2003 Small Business Server
- Windows 2003 Standard Server Edition
- Windows 2003 Standard Server Edition 64-bit
- Windows 2003 Storage Server
- Windows 2003 Web Server Edition
- Windows 2008 Datacenter Server
- Windows 2008 Datacenter Server Edition 64-bit
- Windows 2008 Enterprise Server
- Windows 2008 Enterprise Server Edition 64-bit
- Windows 2008 Essential Business Server
- Windows 2008 Small Business Server
- Windows 2008 Standard Server Edition
- Windows 2008 Standard Server Edition 64-bit
- Windows 2008 Storage Server
- Windows 2008 Web Server Edition
- Windows 2008 Web Server Edition 64-bit
- Windows 7 32-bit
- Windows 7 64-bit
- Windows Mobile 5 Pocket PC
- Windows Mobile 5 Pocket PC Phone Edition
- Windows Mobile 5 Smartphone
- Windows Mobile 6 Classic
- Windows Mobile 6 Professional
- Windows Mobile 6 Standard
- Windows Mobile 6.1 Professional
- Windows Mobile 6.1 Standard
- Windows Mobile 6.5 Professional
- Windows Mobile 6.5 Standard
- Windows Vista 32-bit
- Windows Vista 64-bit
- Windows XP Home
- Windows XP Professional
- Windows XP Professional 64-bit

Summary

When you try to open a Zero download message through OWA, the following error message shows:

The message could not be opened

Details

This issue happens because the critical software updates that provide support for safe HTTP are required to read Zero Download messages in OWA. Some mail scanners and content filters may also cause this error message by modifying the HTM file.

To resolve the issue, do one of the following:

For Exchange 2007, apply Service Pack 1 and the latest updates. Execute the command below on the Exchange administration console:
Set-OwaVirtualDirectory -identity "Owa (Default Web Site)" -FilterWebBeaconsAndHtmlForms DisableFilter

For more details, refer to the Microsoft article Configure Web Beacon and HTML Form Filtering for Outlook Web App.
For Exchange 2003, apply the patch from the Microsoft article A software update for the Safe HTML filtering feature is available to enable you to use the POST method in HTML forms in Outlook Web Access for Exchange Server 2003.

Rating:

Category:

Configure

Solution Id:

1058111

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