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In either case it won't be only HTML, as you will need probably need to POST the information to some script that will then do the required action.
You will have to give more details about what sort of server you are running your web site on, and if you have acess to form to mail utilities or scripting language.
However, there are so may drawbacks to this approach that it's not a good idea. For one thing it depends on the user having a properly configured email client. For another, the reults come through (if they do) in an unformatted manner - and then you need to manually enter each submission into your mailing list. So even though it's possible, for all practical purposes Dijkgraaf's advice is the way to go.