Is it right to end an email with "Regards" then your name? I looked it up online and it did say yes it is correct - but can come across "cold." - J.C., Gainesville, TXAunt Dandelion replies:
It is perfectly correct. Any forms of salutation and closing used in letters can apply to email too.
As with any communication, you would tailor the tone and relative formality to both the recipient and the subject matter. There is nothing about email per se that suspends or changes these rules. Just as a paper letter should vary in tone and language depending on whether it is a business communication or a friendly letter, so does email. If "Regards" would be correct for a communication on paper, it would also be correct for email.
For more thoughts about email, read this earlier post.