The Content Filtering feature allows administrators to filter email messages based on the extension of their attachments.
Once you have set a list of potentially suspicious files, configure the action to take on them.
You can also filter email attachments with double extensions.
Select the relevant checkbox to classify certain extensions as dangerous. Then, use the Add, Delete, Clear and Restore buttons to set the list of extensions to block.
Use the Content Filtering feature to block messages containing files with double extensions, except for the ones you allow. Use the Add, Delete, Clear and Restore buttons to configure the list of double extensions to allow.
Select whether you want to delete files with dangerous attachments or move them to a specific folder. This can very useful to store and analyze those files in order to make the appropriate adjustments to the list of dangerous extensions.
Click OK. Your Exchange servers will be protected against dangerous attachments.