How to configure postfix to relay only to a specific email address?

Solution Verified - Updated -


  • How to configure postfix in a way that clients in network can only relay emails to while clients in can have unrestricted relaying?
  • How to screen outgoing mail with Postfix
  • How to allow mail to be sent to only specific domains using Postfix


  • Red Hat Enterprise Linux 5.7
  • postfix-2.3.3-2.3.el5_6

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