Like other Forgotten Attachment Detector, when you send an email FAD checks it for keywords (like "see enclosed" or "attached" or PDF) that indicate you've forgotten to attach an attachment. If it detects this, it notifies you and gives you a chance to correct any mistakes. However, with FAD from Office Labs you can define custom keywords that'll trigger "missing attachment alert". It works like this:
A pop-up window appears whenever you attempt to send an email that contains keywords that indicate the likelihood of a forgotten attachment,
The FAD customization window allows you to add, edit, and remove keywords, increasing the accuracy of the program, based on our usage and experience.