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print this documentDocument ID:2008063012362648
Last Modified:07/14/2010

Since upgrading Symantec Endpoint Protection (SEP) to 11.0.2010.25, some Outlook attachments appear to be stripped of content.

Situation:After upgrading SEP clients to 11.0.2010.25, some Outlook attachments appear to be stripped of content or corrupt. If the attachment is saved to disk the file is 0 bytes in size instead of the expected size.

Solution:This problem is fixed in Symantec Endpoint Protection 11 Maintenance Release (MR) 3. For information on how to obtain the latest build of Symantec Endpoint Protection, read Obtaining an upgrade or update for Symantec Endpoint Protection.
http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2007121216494948

Optional Workarounds:
  1. Add the affected file extension to the Selected Extension list.
  2. Change the Outlook Auto-Protect File Types configuration from 'Selected: Extensions' to 'All Files'.
  3. Disable or uninstall the Outlook plug-in from the SEP client.


Technical Information:To disable the Outlook plug-in follow the below steps:
To disable the plug-in from the Symantec Endpoint Protection Manager (SEPM):
      1. Open the AntiVirus policy in SEPM.
      2. Click on Microsoft Outlook Auto-Protect
      3. Unselect Enable Microsoft Outlook Auto-Protect
    • To disable the plug-in from within the Symantec Endpoint Protection (SEP) client interface:
      1. Open up the SEP client UI (User Interface).
      2. On the AV bar, click Options> Change Settings
      3. Click on Outlook Auto-Protect
      4. Unselect Enable Microsoft Outlook Auto-Protect
    • To disable the plug-in from Outlook:
      1. Open Outlook
      2. Click Tools> Options
      3. Select the Other tab
      4. Click Advanced Options
      5. Click Add-in Manager
      6. Unselect the Symantec AntiVirus Outlook Protection and click OK
    • To disable the plug-in from Outlook 2007:
      1. Open Outlook 2007
      2. Click Tools> Trust Center...
      3. Select the Add-ins tab
      4. On the Manage drop-down menu, select Exchange Client Extensions, then select Go...
      5. Unselect the Symantec AntiVirus Outlook Protection and click OK
      6. For best results, close and restart Outlook 2007.

To uninstall the Outlook plug-in follow the below steps:
    1. Click Start> Control Panel
    2. Double-click Add or Remove Programs
    3. Select Symantec Endpoint Protection
    4. Click Change
    5. When the installer appears, click Next
    6. Select Modify and click Next
    7. Open the AntiVirus Email Protection
    8. Click on the Outlook Scanner and select the This feature will not be available option
    9. Click Next and then Finish.

print this documentDocument ID:2008063012362648
Last Modified:07/14/2010

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Product(s): Endpoint Protection 11
Operating Systems(s): Windows XP Professional Edition, Windows Vista
Date Created: 06/30/2008

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