postfix | header checks

[s2If current_user_can(access_s2member_level1)] # HEADER_CHECKS(5)                                              HEADER_CHECKS(5) # # NAME #        header_checks – Postfix built-in content inspection # # SYNOPSIS #        header_checks = pcre:/etc/postfix/header_checks #        mime_header_checks = pcre:/etc/postfix/mime_header_checks #        nested_header_checks = pcre:/etc/postfix/nested_header_checks …