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Microsoft Exchange Server PowerShell Essentials by Biswanath Banerjee

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Creating and managing E-mail Address Policies

We will first take a look at accepted domains and then come back to E-Mail Address Policies. An accepted domain is an SMTP name for which the Exchange organization is responsible for sending and receiving E-Mails.

There are three types of accepted domains:

  • Authoritative: This is the domain with recipient's mailboxes hosted in your Exchange organization. If a domain is set to authoritative and the recipient is not found in Active Directory, a Non-Delivery Report (NDR) is sent to the sender.
  • Internal relay: In this scenario, the domain will not have all the recipient's mailboxes in your Exchange organization. For example, you have Exchange and Lotus Domino as your messaging environment and a SMTP domain ...

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