How To Write A Letter With Company Long Name. When you don't know the recipient's gender, you can use their first and last name. On the other hand, informal letter writing is the business casual of letters.
Print it at the top line of the address block centered in the middle of the envelope, a few lines below your information. Or enclosure if you enclose something with the letter. While “to whom it may concern:” and “dear sir” or “dear madam” are appropriate ways to start a business letter, using the recipient's name in your salutation will make your business letter feel much warmer and more personal.
