Background: We are use Windows Server 2003R2, Exchange 07 and Outlook 10/13, We have setup ABC.com for the AD domain and setup email. It works and functional in both OWA & Outlook Anywhere in branch office. Later setup another domain XYZ.com in same exchange server. Both email domain are workable in using OWA & Outlook Anywhere in branch office. (Can't use VPN)
Because of company issue, the ABC.com has change the Name Server and will point to other IP address. The pervious setting in branch office for Outlook as below:
Server: exchange.abc.com
Exchange Proxy: htps://mail.abc.com
Exchange Server Public IP: 202.xxx.23.2
For all using outlook email @XYZ.com that can't connect to server, but OWA is workable. They can typehttps://mail.xyz.com/owa or https://202.xxx.23.2/owa to login to exchange server for send & receive email. And Ive use a stupid method to temporary fix this issue for using Outlook, we have add "mail.abc.com 202.xxx.23.2" & "exchange.abc.com 192.168.1.200" to local PC host file. Then it can connect to exchange by Outlook.
But this not the best way, because it can't work on iPhone, iPad & Android mobile device.
Please suggest the best way to fixed this issue for long-term running. Thousand Thanks.
Chris
Chris Pang Chris@networkstar.com.hk