I tend to use "Regards" too.
Are the rules for email different from elsewhere? Generally, I would say that email is a very much less formal medium than any other.
What do you think?

English Teacher
Questions about how to open and close formal emails keep appearing in forums. There seem to be a number of ideas and no consensus, so I was wondering what people use. I use the same salutation and closing as I...
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Source: The UsingEnglish ESL Digest
Online newsletter weblog containing ideas, thoughts and musings about the English language and its use, and is aimed at ESL learners and teachers alike.
I tend to use "Regards" too.
Are the rules for email different from elsewhere? Generally, I would say that email is a very much less formal medium than any other.
What do you think?
I'm not a teacher, so please consider any advice I give in that context.
Formal email is an alien concept to me. :wink:
Anyhow, I agree with Red. I tend to use no signature or just R.
:)