let's game ... multiple addresses on the same user ID box ....besides you can change the root user email account.....(hide your ass)

Forwarding to an address

To forward mail to to another address, you need to place the email address of the account you want to forward to in the .forward file.

 echo someone@somewhere.else > .forward (replace someone... with an email address)

To stop forwarding, remove the .forward file.
The .forward file may contain multiple locations to forward your e-mail. For example, you may wish to forward mail from one account to several, or keep a copy of the mail you forward in your local account. To do this, simply add a line in your .forward for every location you wish to forward e-mail to. So, if Bob wanted to forward his mail to Mary and Joe, but also keep a copy of it, he could have a .forward that looks like this:

        \bob,
        mary@socrates.berkeley.edu,
        joe@socrates.berkeley.edu

The backslash (" \ ") before Bob's address leaves a copy of the message in Bob's account as well as forwards a copy of the message to Mary and Joe.
Warning: Please take care when forwarding mail. Place the .forward file in the account you want to forward mail from containing the destination e-mail address. The destination address should NOT be the same as the source address. Also, the destination address should NOT be an address which will forward mail back to the source address. These kinds of loops cause mail to be bounced between machines and will eventually cause your mail not to be delivered.

Appending to Files

The ~/.forward file can contain the names of files onto which mail is to be appended. Such filenames must begin with a slash character that cannot be quoted. For example, if a user wishes to keep a backup copy of incoming mail:

\user
/home/user/mail/in.backup

The first line (\user) tells sendmail to deliver directly to the user's mail spool file using the local delivery agent. The second line tells sendmail to append a copy of the mail message to the file specified (in.backup).

If the SafeFileEnvironment option is set, the user should be advised to specify the path of that safe directory:

\user
/arch/bob.backup           here /arch was specified by the SafeFileEnvironment option

When the SafeFileEnvironment option is used, the cooperation of the system administration may be needed if users are to have the capability of saving mail to files via the ~/.forward file.

Pipes in ~/.forward file

Any delivery agent for which the F=| flag is set can also pipe messages through programs. To disable this ability, simply remove the F=| flag from all delivery agent declarations in your configuration file.

The syntax is as follows:

|prg
"|prg args"
|"prg args"

http://www.softpanorama.org/Mail/pipes_in_dot_forward_file.shtml 

do u know what i'm thinking guys...check it out...traceback with an @ alias ...they use AMD64 because they are using the aliases on the games sessions

Terminal 101: Creating Aliases for Commands

Every Monday (or in this case, Tuesday), we'll show you how to do something new and simple with Apple's built-in command line application. You don't need any fancy software, or a knowledge of coding to do any of these. All you need is a keyboard to type 'em out!

While using Terminal, you may discover that you constantly run a string of commands so often, it's ridiculous that you have to type them in at all. Well, just as you can create shortcuts to applications and automate actions in OS X, you can also do so for Terminal commands that are in constant rotation. These are called aliases, and you can set them up to run temporarily or permanently through your Mac’s command line interface.

Creating a Temporary Alias

To create a temporary alias that is good for the current terminal session, you will use the following format to create the alias:

alias new_name='command to be performed'

Just about any command can be used to create an alias, but we'll use this sample command throughout this how to. This command will let us jump to our Documents folder just by typing in "documents":

alias documents='cd /Documents'

Once the command has been assigned to its alias, you can type in the alias name followed by the enter key to perform the action assigned to the alias.

Recording Aliases Permanently

If you assign an alias using the above method, then it will only be available for the current terminal session. Once you close the terminal window, the alias will no longer be available. To make the alias permanent, you will need to edit a file called “.bash_profile” by running the following command:

nano /.bash_profile

This will open nano (a command line text editor). Use the arrow keys to place the cursor at the bottom of the file, and type in the aliases that you wish to use, one per line, just as you did when creating temporary aliases. When you are done, press Control + O (Write Out) to save the file. Press Command + X to exit nano and go back to the command line.

When you quit and re-open the Terminal application, your aliases will work without having to re-create them each time. 

http://www.techradar.com/how-to/computing/apple/terminal-101-creating-aliases-for-commands-1305638