<to> – recipientnicknamexml:langidstyle/classPossible Contents: (Text | inline element | newline)*
Description:
Encloses the recipient. Single lines can be separated with
<newline/>s. If the nickname attribute is given
and there is contents, the contents of this element has higher
priority. So, if you want to use the address book, leave it empty:
<to nickname="Knuth"/>
See <letter>.