This feature is available with artica version 1.4.032813
If you are under this release you need to upgrade your Artica version.
If this version is not released use the How to upgrade Artica to a nightly build ?
It allow you to define globally which attachments must be globally deny
- Click on Messaging in the left pan
- Select "Security Settings" tab
At the end of this section, choose "Attachment Blocking" icon
You can Add pre-defined rules to see examples by clicking on the "Add default rules" button.
By clicking on the green cross, you will be able to add your own policy.
- Define in the field the 3 letters that represent the file type.
- You can add a list in one shot by separate each value by a comma
