A site visitor writes:
I have an article on my website for your review titled Email Sign-Off Considerations that you may find helpful. The article includes a healthy list of suggestions you can use.
As far as greetings, Hi, Hello, Howdy, G’Day and Dear, that covers it all. Use what matches your personality, intent, tone, and formality of the email. Just be sure to include a greeting, so you don’t appear bossy or terse.
I’ve encountered many creative greetings and sign-off over the years. Too many to track or list, so stick with the basics, and you’ll never go wrong.
If you use something unique or different, it should be unique or different to you alone. For example, using another person’s unique sign-off or greeting that reflects their personality may not have the same reaction if you do the same.
Your choice of email greetings and closings should reflect the tone and formality of your email as well as your personality!