At the moment, this guide may have little detail about installing Exim. However, it does have some other details about how to interact with an installed server.

exiqgrep -i | xargs -d $'\n' sh -c 'for arg do echo "====="; exim -Mvh "$arg" ; done ' | nl | grep --color=always -Ei "\^\$"\|"====="\|"F From: "\|"T To: "\|" Subject: " | less -R
More coming.... Related: svgeteml.htm : Viewing a queue exim -bpr | grep frozen | wc -l exim -bp | exiqsumm | sort -bgr | less grep -i "no immediate delivery: load average" /var/log/exim_mainlog | wc -l * If an issue, you may wish to find out more details about what the system was doing at that time. On some systems, sar may be helpful. See: Slowness on Unix-based Platforms: “Prior System Slowness”. Since slowness can be different then system load, it may be worthwhile to re-configure (or disable?) this behavior. If this behavior is enabled, it can be configured to determine what load level this happens with.