Learn how to write a letter of resignation to quit your job on good terms. Here's what to include in a resignation letter, with examples and templates.No reasons are necessary. Free resignation email template for when you're leaving your job straight away. Customise the template for your personal circumstances. Firstly, it provides clear documentation of your intention to leave, ensuring that there is no ambiguity regarding your departure date or reasons for leaving. Add contact details, company name, and date. His short resignation letter didn't give a reason. OC Register: Santa Ana files lawsuit against lodge to wipe out criminal and drug-related activity.