Contact Inactive Plugin
This plug in provides a way for you to create lists to use in order to send emails to specified people. You can specify the number of days inactive to send to. You can also target to suspended, canceled or upgraded members. All of these are done through the admin area so there is no risk of sending a mass mail that reveals the addresses.

The Contact Inactive Plug In is $15.00 if you install it yourself and $20.00 if you would like us to install it for you.