9 Awesome Gmail Features You Probably Don't UseEveryone loves Gmail, right? It's one of the best email services, it's completely free, and it works like a dream. But you'll be surprised how little of Gmail's plethora of features you are actually using. Good old Gmail got a few exciting new features recently, but that's only the tip of the iceberg. Several cool things in Gmail have existed for a long time without anyone bothering to use them. L
Gmailの検索演算子一覧（隠れコマンド含む）。高度なフィルタ作成に！
