code: public Email to(String... to) {
  		for (String t : to) {
  			to(new EmailAddress(t));
  		}
  		return this;
  	}
docs: Add a "to" recipient address. It supports both "user@domain.host" and
  "Personal Name &lt;user@host.domain&gt;" formats.
  
  @param to
  one or several recipient addresses
  @return this instance for fluent chaining