Few notes about how to block a specific domain to send out emails
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To help in cutting down the number of spam mails currently getting through a specific domain # vi /etc/postfix/blacklisted_domains # cat /etc/postfix/blacklisted_domains mydomain.com REJECT # postmap /etc/postfix/blacklisted_domains # postconf -e 'smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/blacklisted_domains, permit' |