Yep, can confirm on fresh installation: # postfix check postfix/postfix-script: warning: not owned by group maildrop: /usr/sbin/postqueue postfix/postfix-script: warning: not owned by group maildrop: /usr/sbin/postdrop postfix/postfix-script: warning: not set-gid or not owner+group+world executable: /usr/sbin/postqueue postfix/postfix-script: warning: not set-gid or not owner+group+world executable: /usr/sbin/postdrop