OWA: Cannot access it from outside firewall

5 pts.
Tags:
Firewalls
Microsoft Outlook
Outlook Web Access
OWA
I cannot access OWA from outside firewall using https://serververname/exchange or https://ipaddress/exchange but can access it internally. Can anyone help?

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Are you sure your external firewall permits https (tcp port 443) traffic? Also are you sure you have a public IP address for your OWA server? Note that best practice is to use Microsoft ISA server in front of the OWA server so your Exchange system is not publicly exposed. See my blog entries on our Exchange 2007 implementation (OWA certificates).

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