my customer is working Microsoft Exchange Mail server, we can talked customer and we persuade use to Zimbra Mail Server. but we have got a one problem.

Customer is use to one Domain name and need to 2 mail server ( zimbra & Exchange ) 1 Domain 2 IP ( Server )

Domain is use to DNS A record mail.domainname.com >> go to Exchange mail server.

but we can need plus Zimbra mail server this sistem... and all domain name is not change....

mail.domainname.com >>> Zimbra and exchange Mail server

1 domain ( 2 IP adres, 2 Server ) is working ? is possible ?

how can I do this possible ?

thank you

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