How can I configure Postfix to silently drop/discard/reject mails that were sent from specific users to an external address?

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                          How can I configure Postfix to silently drop/discard/reject mails that were sent from specific users to an external address?
It should work only for specific users 

E.g:

1. abc@localdomain can send mail to only @localdomain users. 
2. abc@localdomain can only receive from  @localdomain users.

Asked by Daya (327 rep)

Sep 25, 2013, 03:02 PM
Last activity: Oct 2, 2023, 05:03 AM

How can I configure Postfix to silently drop/discard/reject mails that were sent from specific users to an external address?

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