Tag Archives: Postmaster address

How to change the Postmaster address in Exchange 2013

While testing mail flow I noticed that when an NDR was sent out by my Exchange 2013 the default postmaster account was used, with the default domain, i.e. postmaster@contoso.local (I use a .local TLD on my Active Directory domain) instead of a regular and routable SMTP domain.

To change this you can open the Exchange Admin Center, navigate to Mail Flow | Receive Connectors and click the more options (the three dots) and select Organization Transport Settings as shown in the following figure.

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