Awasome Yours Truly In Business Letters: Proper Sign-Offs For Professional Communication References. Here are some of the most common and useful email closings for sending. Web if the letter is to your supervisor or to a business prospect you haven’t met, sign off with a more formal,.
There are many professional closing lines you can add to a letter, such as respectfully, sincerely. Yes, it’s a bit stodgy, but it works. Use “sincerely,” “best wishes,” or “regards”.
