When Is Best the Worst? Start by Looking at the End of Your Emails
If you send out or respond to emails be conscious of the Sign-Off police!
We just call it a closing. The ending or closing or signing off of a letter or email. And now it's not necessary. Or better put outdated.
Sincerely, best, regards, yours and cheers all make the list to stay away from. Even 'Thanks' is history.
I actually like to see a signature block that includes the persons contact information.
So how are you to end an email these days? Just sign your name. The period at the end of your last line is good enough. For now.