I’ve been using InDev’s MailTags for a while now but sadly this isn’t the panacea that I’d hoped. It seems that it occasionally deletes messages without your consent and without telling you. Obviously this is not ideal, especially as it happened to me yesterday when I tagged an email with the words “flight”, “details”, “receipt” and “important”. And when I say it deletes messages, I don’t mean it moves them to the trash, I mean the message is gone.