postfix remove/hide client name&ip from header

1.create file “header_checks_submission” in /etc/postfix/ and fill below

/^Received:/                IGNORE
/^X-Originating-IP:/        IGNORE
/^X-Mailer:/                IGNORE
/^Mime-Version:/            IGNORE

2.edit “main.cf” in /etc/postfix/” add below to end of file

header_checks = regexp:/etc/postfix/header_checks_submission

3.restart postfix service

service postfix restart

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