I am going to try the following minimal configuration today:

<appender name="DailyRollingFileAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
     <file>teamwork.log</file>
     <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
         <fileNamePattern>teamwork.log.%d</fileNamePattern>
    </rollingPolicy>
    <encoder>
       <pattern>%-5level [%thread] %d{HH:mm:ss.SSS} [%logger{0}] - %msg%n</pattern>
     </encoder>
</appender>

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