How can I make it so that users within a company's internal network can access OWA by using the external OWA URL address?
Currently users within the company can only access Outlook Web Access (OWA) by going to the URL address https://owa.comapnayname.local/owa
Then they access Outlook Web Access (OWA) outside of the company's network by going to the URL address https://owa.companyname.com/owa
What do I need to do so that users within the company's network will be able to access the Outlook Web Access (OWA) within the company's internal network by going to the same URL address that is used to access Outlook Web Access (OWA) externally, https://owa.companyname.com/owa?
I understand that this involves setting up a DNS zone or something like that.
Please give me the exact steps on how to do this.
Exchange Server 2010 is being used on a Server 2008 R2 Active Directory network.