To help protect your computer, Entourage 2008 blocks certain types of incoming attachments because they could potentially introduce a virus to your computer.
As an administrator, you can view the default Attachment Policy property list (.plist) file, which contains a list of the file types that Entourage automatically blocks. If you choose, you can create a supplementary .plist file that overrides or extends the policy to block or allow file types that you specify. You then can deploy this file to users' computers. The Attachment Policy property list (.plist) file is located in Microsoft Entourage.pkg/Contents/Resources.
To edit a .plist file, you can use a property list (plist) editor, which is available as part of Apple's XCode toolset. The default location for the plist editor on the hard disk is /Developer/Applications/Utilities/Property List Editor. Various third-party plist editor products also are available.
The types of files that are blocked or allowed when a user sends or receives a message are specified in the Entourage 2008 Attachment Policy. For more information about the Attachment Policy, see Attachment file types in Entourage 2008 in the Office 2008 Technical Reference section.
If you want to change the Attachment Policy, create a supplementary .plist file as described in the following procedure. Any changes made to the default Attachment Policy .plist file are subject to override during application updates. Changes to the supplementary file will not be affected by updates.
Create a supplementary Attachment Policy .plist file
Hold down CONTROL and click the Microsoft Entourage icon.
Click Show Package Contents.
Double-click Contents, and then double-click Resources.
Click AttachmentPolicy.plist, and then press ⌘+D to duplicate the file.
Drag the duplicate file either to /Library/Preferences (to take effect for all users on the computer) or to /Users/username/Library/Preferences (to take effect for a single user).
Rename the file com.microsoft.entourage.attachmentpolicy.plist.
Open the file in your property list (plist) editor.
Delete all individual String entries, but do not delete the Dictionary and Array entries.
In the AllowedAttachments list, create String entries for any file types that you want to allow.
You can specify a file type by using a FilenameExtension, a MIMEContentFileType, or a MacOSFileType.
Create the String entry as a child entry under the corresponding Array type.
In the UnsafeAttachments list, create entries for any file types that you want to block.
It is not necessary to specify file types that are already blocked in the default .plist file.
Save, and then close the file.
Quit, and then restart Entourage.
NoteWhen specifying the file extensions, do not precede the extension with a dot (.). For example, if you want to include the extension asp to your AllowedAttachments list, just specify asp instead of .asp.
