Private Messaging (PM
) is the Newgrounds.com internal mail system. Anyone with an account can send a message to anyone else on the site via the contact form
or links on user pages.
You have a combined two megs of data shared between your inbox and sentbox.
You may also store up to 100 people on your block list for spam protection and up to 100 on your contact list, to remember them later.
If you still don't understand how it works, you have our sympathy.