A lovely message from a reputable sender with a penchant for fancy email formatting has CSS rules expressed in JSON, presumably so it can adjust for the mail client or some such.
A segment contains the text: "items":[{"type":"Input.Date","id":"date"}]} The KAM_SOMETLD_ARE_BAD_TLD rule is triggering on Input.Date. The rule is weighed quite high by default (5.0 here). This is pushing messages over the spam threshold. I've adjusted the weight locally but it's probably something that should be tweaked globally. -- For SpamAssassin Users List