Question: I'm trying to change the shortcut key for "Run Application" ( `Alt`+`F2` ) to the Windows key.

When I click "Show the panel's Run application dialog box" in Keyboard Shorcuts, it says "New Shortcut", waiting for my key combination. I press the Windows key… and nothing happens.

Answer: 
Configure postfix on the php host to act as a relay to the "good" server.

in /etc/postfix/main.cf (on the php host)

```
relayhost = goodmailserver.com

```

and do a "postfix reload"

Also ensure goodmailserver.com is configured to accept mail from your php host
Edit your php.ini file to set the SMTP server settings. The default settings go to localhost.

<http://www.php.net/manual/en/mail.configuration.php>

**Edit**  

Err... apparently that setting is Windows only according to that document. I honestly can not wrap my head around PHP's design.