This option works only if you have rebuilt the mail server in cwp.admin with antispam. You can blacklist or whitelist incoming emails in the following files: /etc/postfix/sender_blacklist /etc/postfix/sender_whitelist After making changes you need to run the following command for the files you edited postmap /etc/postfix/sender_blacklist postmap /etc/postfix/sender_whitelist Options: # Example for blacklisting domains/IP's or emails, […]