Exim comes with a utility called ‘exiwhat’ which will display
what each instance of exim is currently involved with. The output will
look similar to this:




root@server [~]# exiwhat


2118 daemon: -q1h, listening for SMTP on port 25 (IPv4)


2130 daemon: no queue runs, listening for SMTPS on port 465 (IPv4)


31640 handling incoming connection from [1.2.3.4]




Also, to monitor the exim log in realtime, you may use the tail command thusly:



tail -f /var/log/exim_mainlg