1 

     2 # prepare user environment for running (exim) and testing exim (eximtest)

     3 RUN groupadd --system exim

     4 RUN useradd --system -g exim -c 'Exim User' exim

     5 

     6 RUN groupadd eximtest

     7 RUN useradd --home-dir /home/eximtest -g exim -c 'Exim Test User' -m eximtest

     8