qydlqcwsiacfymissuesapacheorg httpsissuesapacheorgspamassassinshow_bugcgiid5817 additional comments wlbpaliggfaddostechca 20080222 1348 reply comment 28 going make huge difference case alone rule implemented one regex rather 34 one better clarify usually better makes single regex nasty mess backtrack hell better case one probably faster though receiving mail assignee bug watching assignee thu 07 aug 2008 124158 0800 bug 5817 poorly faked mta received headers mua mx