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Exchange Server

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by jeff

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Our parent company owns two sub companies with different names and domain names. Can we use a single Exchange server to process mail for both domain names(i.e. Johndoe@company1 and Johndoe@company2)?

3 replies

by miketee

Yes you can, but I would not recommend it unless the parent company has the bandwidth to support it. This will be a tricky task, but first the parent company's server must be register with its company's Domain name and the alias domain name of both subordinate companies on a Domain Name Server(DNS). MX records must also be created for that server on the DNS. Please ensure that there are no MX records on any DNS pointing the subordinate companies. example:

Registered Hostname: MainServer Registered Domain: Parentcompany.com

MainServer@parentcompany.com

Alias: MainServer@company01.com
MainServer@company02.com

MX Records:
MainServer@parentcompany.com = 10
MainServer@company01.com = 20
MainServer@company02.com = 30

Then create x.400 or site connector between all exchange servers for the three companies. (This is where you will require good bandwidths.) Remember, I said, this will be tricky!

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