Question : Exchange 2010 Certificate Issue

I am in the process of migrating a client from SBS2003 to Server 2008 Enterprise R2 and Exchange 2010 and have run into a problem.  The client does not have a valid certificate from a certificate authority.  When I try to configure outlook 2007 to connect from outside the LAN, I get the following error:

There is a problem with the proxy server's security certificate.  The name on the certificate is invalid or does not match the name of the target site.
Outlook is unable to connect to the proxy server. (Error Code 10).

OWA is working fine, though I do get the certificate error.  I can connect from within the LAN fine.  How can I get this working without installing a security certificate?  

Answer : Exchange 2010 Certificate Issue

Assuming that the zipcode is always 5 numbers long, and preceeded by a space, this works:

$string="Anywhere, OH 12345";
$zip = substr($string,strrpos($string," ")+1,5);
echo $zip;
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