Most of the documents I write are letters which are printed and faxed/posted to people.I tried using asciidoc, but unlike latex there is no document class like

Most of the documents I write are letters which are printed and faxed/posted to people.I tried using asciidoc, but unlike latex there is no document class like letter, which automatically formats the content as required for a letter.I think markdown and similar methods needs to be further enhanced for many common documentation use cases.