What e-mail name conventions are used

This is a small overview of what e-mail name patterns I have encountered and which I find preferable. Let us assume that my name is Thomas Kuhn and my postal address is structure.com.

The most prevalent pattern or convention is thomas.kuhn@structure.com, this is my favorite. Other patters are tkuhn@structure.com and ThomasKuhn@structure.com. Also, note that Thomas.Kuhn@structure.com is not really different from the first one, because capital letters do not matter in e-mail names.

Another option would be tom.kuhn@structure.com.