I just noticed that the search results that work in the browser work differently in the email it sends me. In this specific instance, I'm using "NOT". https://www.trademe.co.nz/a/marketplace/toys-models/games-puzzles-tricks/board-games/word-games/search?search_string=NOT%20Scrabble%20NOT%20Monopoly Works perfectly in the browser to exclude Scrabble and Monopoly from my Word Games search, but the email I receive is full of Scrabble.