gistfile1.rb

    yml = <<-EOF
        log4r_config:
          pre_config:
            root:
              level: 'DEBUG'
          loggers:
            - name: "mylogger"
              outputters:
                #- gelf
                #- stdout
                - email

          outputters:
            - type: StdoutOutputter
              name: stdout
            - type: GelfOutputter
              name: gelf
              gelf_server: "graylog2.seekda.com"
              gelf_port: "12201"
              facility: "rspec"
              host: "local"
              #max_chunk_size: 'WAN'
              #level: FATAL
              #level_mapping: logger
            - type: EmailOutputter
              name: email
              tls: 'true'
              domain: gmail.com
              server: smtp.gmail.com
              port: '587'
              subject: 'Message from testing:'
              from: ch.xx@gmail.com
              to: christoph.xxx@xx.com                                                                           
              acct: ch.xxx@gmail.com
              passwd: xxx
              authtype: plain
              formatfirst: 'true'
              formatter:
                date_pattern: '%y%m%d %H:%M:%S'
                pattern: '%d %l: %m'
                type: PatternFormatter
      EOF
      cfg = Log4r::YamlConfigurator
      cfg.load_yaml_string(yml)
      Log4r::Logger['mylogger'].error("testing")