Nail Mail™ can mailbomb people. In later versions there will be more features.
What are some mailservers?
Here is a list of some mailservers:
mail.geocities.com
mail.hotmail.com
dollar.unitree.com
dmark.unitree.com
DISCLAIMER: DEFECT and Team2600 take NO responsibility with what you do with this program. And whatever may happen during the use of the application. There is NO warranty on this product, so if you fuck up, don't blame us or anyone else.