I have email server 2007,DC,ISA2006 in main office.I want to set up a second email server 2007, second DC, second ISA in branch offiice.The branch office aslo use the same domain with the main office .Each mail server have a mail box store.I do not know how to config in exchange 2007 when the mail server in the main recevice email, the branch email server had the same email.Two site connect with vpn connectionPlease help meThanks

Hi, What you need to do is install the Exchange 2007 server in the same as the branch office and move all the users that are working at the branch office to a mailbox on the server there. Also don't forget to place a Hub transport server there because it's needed. You can have a second ISA server in the branch office but you can also use the ISA in the main office, the CAS will redirected the users to the correct mailbox. If course you can also place a CAS in the branch office if it needs to be accesible via the internet you can place an ISA server in front of it. Regards, Johan blog: www.johanveldhuis.nl

I want to fail over my email system by place a second email system in a branch office.I use two A record and mx record pointed to my system email.User in branch office can access internet.When my email system in the main office down, User can continue send and receive email with second email server in the branch office.I don't known how to config replicate two mail server 2007 Regards,Hung

Per my knowledge, to failover the mail servers this way is CCR Notes: CCR can cross different physical subnets, but it still requires that mailbox servers stay in the same Site [For Windows Server 2003] Notes: CCR can cross different physical subnets, stretched clusters will no longer require same subnets when spanning over sites [For Windows Server 2008] References: Cluster Continuous Replication (CCR) Deploying an Exchange 2007 CCR Cluster [For Windows Server 2003, for Windows Server 2008]

Hi, Another option is to use SCR which can be perfectly used for DR. Regards, Johan blog: www.johanveldhuis.nl