Taylor discusses 6 key aspects of writing a resignation letter, including when to give notice, what to say, how to format it, and how to deliver it. Then, state your intent to resign and exact date of departure.I say, I'm writing to inform you that my last day will be on this date. Thank them for your time at the company, even if you don't mean it. There's nothing wrong about it. If you see people say that it's wrong, that's because they used to live in the 90's. I enclose my resignation letter as an attachment to this email. Find out who should be the recipient(s). The only required elements are 'I resign' and an effective date (such as two weeks notice).