Learn how to write a resignational letter if you're quitting for personal reasons. Commence your letter with a formal salutation and a concise introductory paragraph.I would not give any reason for leaving. In the body of the letter, immediately state your intention to resign and provide your reasoning, including only positive feelings towards your work experience. Use one of our resignation letter templates. Simply write that you're leaving for "personal reasons" after stating your intent to resign and your last day of employment with the company. Posting your resignation was perhaps a bit awkward, but not illegal.