Gmail 搜索技巧

- from: e.g. from:richard ; from:richard OR sameer

- to: e.g. to:ana ; to:ana OR joa

- cc: e.g. cc:me

- subject: e.g. subject: Prod

- has

- 引号: 用于精确搜索短语

- (): 用于组合字词，e.g. from:amy(dinner OR movie)：来自 Amy 且 包含字词"dinner"或"movie"的邮件

- before/after: 搜索在特定时间段内发送的邮件，日期必须采用年/月/日的格式。

  示例 - after:2012/01/01 before:2012/02/29 in:inbox