Postfix Blacklist Domain or IP

We recommend that you rebuild the mail server with antispam before using this info if your mail server was rebuilt before 14.01.2022. 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…