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Exchange 2013 and outlook 2013 over VPN

Okay so we upgraded the Exchange server 2007 to server 2013.  And now since then on the VPN we cannot connect outlook to the exchange server.  Nor can we connect outlook with the VPN not connected.  Mobile phones (iPhones, Androids) are connecting just fine.  Is there something I need to do to make outlook work remotely differently then what we did with with 2007?
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AltaPac
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AltaPac
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Alan HardistyCommented:
Why connect via VPN?  Why not connect via Outlook Anywhere then you don't need a VPN tunnel?

Alan
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AltaPacAuthor Commented:
What needs to happen for outlook to connect through Outlook Anywhere?  What ports or configs need to be fixed for that?
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Alan HardistyCommented:
Port 443 and an SSL certificate - same for Activesync using the mobiles.  If the mobiles work without VPN, then you just need Outlook Anywhere configured and working (which it is by default), then you configure Outlook accordingly and Outlook will work anywhere that the computer it is on has internet access.

http://technet.microsoft.com/en-us/library/bb123741(v=exchg.150).aspx
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Adam BrownSr Solutions ArchitectCommented:
Outlook Anywhere tunnels all the usual RPC traffic that Exchange uses through port 443, or HTTPS. Another name is RPC over HTTPS. Exchange 2013 uses that exclusively, so if you VPN in, you have to make sure the VPN allows traffic over port 443 to your Exchange CAS servers. Otherwise you can just run 443 to your CAS through the firewall and not worry about it.
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