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