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Exchange Accepted Domain and Public DNS

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  • Exchange Accepted Domain and Public DNS

    Hi All,

    I will have an Exchange server that will host 2 authoritative accepted domain, meaning i'll have a few mailboxes with domain suffix @a-domain.com and a few with @b-domain.com.
    The question is -
    1. Do i need to have a mx record for both domains pointing to different host a record, but same ip?
    2. Do i need to have both domain in my certificated? with their a records
    3. How do i design my name spaces

    Thanks in advance
    Moshe

  • #2
    MX records belong to the external domain, so you will need at least one each
    Certificate does not need both domains unless you are using it for TLS
    Not clear what you want to design
    Tom Jones
    MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
    PhD, MSc, FIAP, MIITT
    IT Trainer / Consultant
    Ossian Ltd
    Scotland

    ** Remember to give credit where credit is due and leave reputation points where appropriate **

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    • #3
      I have one exchange organization with two domains, 50 mailboxes per domain
      First domain - company-x.com
      Second domain - company-y.com
      Which MX records, Host A records i need to create in public DNS in order to receive emails for this domains

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      • #4
        Ok, i got it!
        i will need to create 2 MX Record that will point to the same host a record (which will be my firewall)
        So it will be like this:
        MX for company-x.com will point to mail.company-x.com
        MX for company-y.com will point to mail.company-x.com

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