code: @Override
      public void configure(Properties configuration) {
          String u = configuration.getProperty(ANDROLOG_REPORTER_MAIL_ADDRESS);
          if (u == null) {
              Log.e(this, "The Property " + ANDROLOG_REPORTER_MAIL_ADDRESS
                      + " is mandatory");
              return;
          }
          to = u;
      }
docs: Configures the Mail Reporter. The given configuration <b>must</b> contain
  the {@link MailReporter#ANDROLOG_REPORTER_MAIL_ADDRESS} property and it
  must be a valid email address.
  
  @see de.akquinet.android.androlog.reporter.Reporter#configure(java.util.Properties)