code: public void setFrom(Object from) throws PageException {
  	if (StringUtil.isEmpty(from, true)) throw new ApplicationException("attribute [from] cannot be empty");
  	try {
  	    smtp.setFrom(from);
  	}
  	catch (Exception e) {
  	    throw Caster.toPageException(e);
  	}
      }
docs: set the value from The sender of the e-mail message.
  
  @param strForm value to set
  @throws PageException