Perl script offering possibilities to
grepin the Exim queue output. More information: https://www.exim.org/exim-html-current/doc/html/spec_html/ch-exim_utilities.html.
exiqgrep -f '<{{email@example.com}}>'
exiqgrep -i -f '<{{email@example.com}}>'
exiqgrep -r '{{email@example.com}}'
exiqgrep -i -f '<{{email@example.com}}>' | xargs exim -Mrm
exiqgrep -f '^<>$'
exiqgrep -c -f '^<>$'