“Oops! Forgot to send the attachment.”

You’ll never utter these words again if you use Send Companion. The plug-in integrates seamlessly with Apple Mail, allowing you to configure the level of review you need. Attachment Reminder will scan your e-mail for keywords which might indicate that you intended to attach a file, such as “attachment,” “photo,” or “PDF”. The keywords can be user-defined, so the flexibility is virtually infinite.