none):/etc/postfix# dpkg -l | grep -i exim
rc  exim                     3.35-1                An MTA (Mail Transport Agent)
ii  exim4-base               4.60-1                support files for all exim MTA (v4) packages
ii  exim4-config             4.60-1                configuration for the exim MTA (v4)
ii  exim4-daemon-light       4.60-1                lightweight exim MTA (v4) daemon