How To Block/Reject Email From Or To A Specific Address Using Postfix On CentOS

Published Date Author: , Posted June 3rd, 2011 at 9:01:17pm

By default, the Postfix SMTP server accepts any sender address. You block email addresses using the sender_access file:

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Angel - Gravatar
#1

Angel said on April 15, 2013, 6:39 pm:

How can I prevent that an specific user send emails to another specific user?
Help please.

Steve - Gravatar
#2

Steve said on February 27, 2014, 4:16 am:

Awesome, (make sure these are the FIRST entry on the lines) helped with my issue! Some if added after other restrictions it is ignored which is pretty frustrating to troubleshoot… Thanks!

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