code: public void setMailFromDefault(String sender) {
  
          m_mailFromDefault = sender;
          if (CmsLog.INIT.isInfoEnabled()) {
              CmsLog.INIT.info(Messages.get().getBundle().key(Messages.LOG_DEFAULT_SENDER_1, m_mailFromDefault));
          }
      }
docs: Sets the mail from default sender.<p>
  
  @param sender the mail from default sender to set