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Hi <br />
I have have exchang 2007 with the following roles installed:mailbox role, unified messaging role, client access role , hub transport &nbsp;and Edge transport role. I want to back up the exhange server i want to know what files i need to backup for every role installed if any one has a step by step guide i will be gratefull.
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Hi 
I have have exchang 2007 with the following roles installed:mailbox role, unified messaging role, client access role , hub transport  and Edge transport role. I want to back up the exhange server i want to know what files i need to backup for every role installed if any one has a step by step guide i will be gratefull.

Exchange 2007 Backup strategy

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

The term "Backup" means the methods and processes involved to copy computer data (system data as well as application data) to media other than the ones where the data originally live (disk, tape, optical, cloud). "Restore" in turn means the methods and processes involved in data recovery, i. e., bringing back copied computer data to their original location. Backup/Restore primarily serves as a means of protection against data loss, be it due to disaster, corruption or sabotage. It can also be used for recovering data from an earlier point in time and even for cloning machines or applications. There is a wide variety of backup/restore software available, from expensive commercial products to free or open source tools.