Fedora 12 x64, Postfix, etc/aliases, PHP

[ckts37]

Hey everyone,

I wasn't quite sure whether this belonged under networking or not.

Basically, I need to route all e-mails to mydomain.com to one PHP script, and store the results in the DB.

The keyword/username before "@mydomain.com" needs to be stored in a column by itself (this word is chosen by the user and provides them with a matching vanity URL and webmail address).

I think I need to set up wildcards in my alias/config files...
/etc/postfix/virtual:

@mydomain.com webmail@mydomain.com

/etc/aliases:

webmail@mydomain.com: "| php -q /var/www/webmail_incoming.php"

I think I'd need some way to retain the username before the '@', so that when I hit /etc/aliases, I could give webmail_incoming.php that username through $_GET, maybe?

Thanks in advance for any assistance!