EmailKeeper for

From TrajectoryLabs:

Features
Create and edit your own categories View all in Database View Database backed up onto PC Easy to Use
Convenient and simple to use. Enter email address and note and EmailKeeper stores it for you and backs up to your PC
Flexible and Functional
View all records at once with ability to delete, edit or add records at any time.
Easily save you email addresses, ready to be called up at any time. New computer? Your old email addresses are gone! On the road? Can't recall that email address?
Never lose another email address again. EmailKeeper remembers for you! Save your important email addresses with EmailKeeper, and move from computer to computer without worry, your database is backed up.