5점중 4점 받음

Somewhat convenient. But why doesn't the "Mailing List" option create a filter based on a List-Id header, which is standard for mailing lists???

이 검토는 현재 부가 기능의 이전 (3.8.1) 버전에 대한 것입니다. 

good point - however - please go to my support site for bugs & feature requests:
http://quickfilters.mozdev.org/bugs.html