Blank Subject Reminder
Empty subject lines are one of the most annoying things with e-mail. It's like publishing a book without a cover! Make sure you never forget again! The Blank Subject Reminder add-in will warn you when you send a message if your subject line is blank - saving you from potential embarrassment!
NOTE: You don't need this add-in with Outlook 2010 as that version includes this feature.
Compatible with Outlook 2000-2010 (*Outlook 2010 64-bit is not currently supported)