forward only certain user's email to google apps for my domain

3 msg	Postfix + cyrus imapd data format error. Comman...
18 msg	Inverse access restrictions?

forward only certain user's email to google app...
\ Zack Chandler (10 Apr 2007)
. \ (Wietse Venema) (10 Apr 2007)
. . \ Zack Chandler (11 Apr 2007)
. . . \ Zack Chandler (11 Apr 2007)
. . . . \ Gerard Seibert (11 Apr 2007)
. . . . . \ John Beaver (11 Apr 2007)
. . . . . . \ Zack Chandler (11 Apr 2007)
. . . . . . . \ John Beaver (12 Apr 2007)
. \ Noel Jones (11 Apr 2007)

4 msg	Postfix + MySQL engine type
21 msg	smtpd_restriction_classes and local delivery
7 msg	transport_maps and auto reply daemon
8 msg	_sasl_plugin_load failed on sasl_auxprop_plug_init
6 msg	SMTP AUTH via LDAP
3 msg	Out: 451 Error: queue file write error
5 msg	FW: Postfix Looping Issue
9 msg	request for help - setting up postfix
6 msg	SecuritySage Guides - New Location
2 msg	Adress extension propagation with virtual alias...
10 msg	Not adding Received hdr for auth'ed users
3 msg	SPamd ?
2 msg	OT: google trends - postfix/sendmail/qmail/exim
1 msg	RE: Cached MX?
3 msg	Something wrong with my servers ?
9 msg	Outgoing Mail Scanning
10 msg	Certificate recommendation?

Subject:	forward only certain user's email to google apps for my domain
Group:	Postfix-users
From:	Zack Chandler
Date:	10 Apr 2007

Hi.

I have a server hosting a web application on a domain (call it
example.com) with postfix installed.
Everything works fine.

I recently signed up for Google Apps (http://www.google.com/a) for my
domain to handle my mailboxes. I redirected the MX record to Google
apps and life was good.

Now I have the requirement that the web application on the server must
process incoming email.

I could redirect the MX records back to the server w/ postfix but I
really like the Google app features for our users.

I want to find a way to have postfix accept all email for the domain
except for a few accounts (zack, support, etc.) and
forward these to Google Apps mail servers... anyone know how to do
this? Basically my MX records would direct email to server running
postfix. Then postfix would slurp up the emails and forward the
special ones on to Google Apps and send all others up the stack to my
application. This way I'd have the best of both worlds. Ideas?

Thanks,

Zack