How To Write A Letter To A Unknown Person. The better options to address email to an unknown person are “ hello ,” or “ hi there.”. If you don’t know the person’s name, avoid overly formal phrases like, “to whom it may concern” or “dear mister/miss.” don’t go too casual either.
You can also use, dear hiring manager if the addressee really is unknown. Dear claims adjustor, would be the style in this situation. Check the spelling a few times, as it's easy to slip up if you've never emailed the person before.
