How do you know for sure whether or not to use a closing? One good test is to ask yourself whether this email is more akin to an instant message/text or a business letter. If you're giving your teammate a quick update on an ongoing project, a formal closing might not be necessary; if you're throwing your hat in the ring for a promotion, it definitely is required. When all else fails, and you're still not sure, err on the side of caution and include it. You'll never go wrong by being too polite and respectful.
Writing an effective, polished business letter can be an easy_to_follow task, so long as you adhere to the established rules for layout and language. Realize that your recipient reads a significant amount of correspondence on a regular basis and will favor well_executed letters that are free of typos and grammatical errors. A good rule of thumb is to proofread it twice and then have a colleague review it to ensure nothing was missed. Sections of a Business Letter. Each section of your letter should adhere to the appropriate format, starting with your contact information and that of your recipient’s; salutation; the body of the letter; closing; and finally, your signature.