The Question and Answer Board

[Churak]

keep reading:

The Private Messages section displays all private messages sent to you by other members. These messages are only viewable by you. To view, simply click on the blue link of the message you wish to read. Once opened, you are presented with two options: Private Reply and Remove.

Clicking Private Reply allows you to respond to the message. The message is sent only to the member whom you are responding to and placed in their Private Messages section, meaning they are the only ones who see the message.
Clicking Remove will delete the message from your Mail Box. The message is no longer shows up in your Mail Box, but it stays on our servers indefinitely, and is placed in your archives.

http://www.investorshub.com/boards/mailboxfaq.asp