Q: If I upgrade Symantec Mail Security for Microsoft Exchange (SMSMSE) will I need to reapply the hotfix?
A: The provided hotfix replaces components of the SMSMSE installation with components that are not impacted by the vulnerability. Upgrading or installing any product version indicated in this article would require the patch be applied.
Q: How can I determine if the patch is already applied to the currently installation of Symantec Mail Security for Microsoft Exchange?
A: To determine if the patch is already applied perform the following steps:
Navigate to <Install Path>\SMSMSE\<version #>\Server.
Right-Click Dec2.dll and choose Properties
Click the Details tab. If the listed Product version is 184.108.40.206 then the patch has already been applied.