Windows only: The Missing Attachment Powertoy for Microsoft Outlook 2007 reminds you when you forget to attach a file to an email—preventing an embarrassing situation with an important contact.
Once installed, the plug-in scans your new email message for words indicating that you’ve attached a file—you can change the words that are checked in the Outlook options panel. The detection only happens for the latest message in a conversation, so you won’t be constantly reminded when dealing with a long message chain explaining cover sheets on TPS reports.
Missing Attachment Powertoy is a free download, Outlook 2007 on Windows only. For more, check out our top 10 Outlook boosters, or if you want attachment reminders without a plugin, you can use a previously mentioned Outlook macro to do the same thing.