How To Write A Lega Thank You Letter . It is usually sent after resignation. Pick your method of contact. FREE 7+ Personal ThankYou Letter Samples in PDF from www.sampletemplates.com Hi [name], thank you for [specific statement about what you’re thanking the recipient for]. For example, say you’re interviewing at a firm known for being very formal and professional—starting off your email with “hi susan,” would be a big mistake. Although there must have been verbal appreciation in the business field, the written note means a lot.