SMTP High Availability in Exchange 2010

I've created a Windows 2008 NLB CAS array successfully in Exchange 2010.  However the SMTP MX record still points to only one server - Should I re-point the MX record to the NLB virtual IP address instead?
edutechceoAsked:
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Glen KnightConnect With a Mentor Commented:
You should really use the Edge Transport role for this.  This will automatically load balance between hub transport servers.

See here for further details:  http://technet.microsoft.com/en-us/library/dd638137.aspx
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edutechceoAuthor Commented:
But can you point the SMTP MX record to the CAS/HUB Transport NLB virtual IP address?  According to what I've read Exchange 2007 SP1 and above supports load balancing SMTP...
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Glen KnightCommented:
I'm not 100% sure to be honest, i thought it needed a hardware load balancer for HT load balancing.

Like i said, the correct way to do it is use a Edge Transport server
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Glen KnightCommented:
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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