> Or some kind of intelligence for identifying, for example, a receipt or confirmation email (which I want indexed) vs a promotional email from the same vendor

> Or some kind of intelligence for identifying, for example, a receipt or confirmation email (which I want indexed) vs a promotional email from the same vendor (which I do not). Yeah, one thing where even statistical filtering sucks. Usually there's not enough confirmation vs promo samples to train a filter and some senders tend to use the same templates for both. It can only be done manually.