Split DNS and external web hosting

We have a new exchange 2010 server running on server 2008 r2.  To get the autodiscover to work I had to create a split dns to point our 2007 outlook clients to the server correctly.  Our internal domain mycompany.local has it's dns zone, and I now have mycompany.com as a primary zone as well.  In this new zone i added mail.mycompany.com and autodiscover.mycompany.com.  The problem?  We have external webhosting so now www.mycompany.com and app.mycompany.com no longer work from inside the office.  I had thought about simply adding entries to the hosts file but that is really sloppy and hard to maintain.  Is there a method to add an entry in my mycompany.com dns zone to have it point to an external website for the www and app entries?
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Exactly the same way you created the "mail" entry. Just create new host (A) records "www" and "app" in your (internal) company.com zone, pointing to the external IP addresses.

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oncall4youAuthor Commented:
Thanks.  I thought since it was in a different network it wouldn't work, but I was trying to create the ptr record.
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