adventures in exim or mail apocalypse

whoopsies!
i renumbered a range of systems, but failed to edit my exim conf file to allow relaying from the new subnet... the messages were first bounced when i failed to add the interface. and then frozen when i failed to add the new network.

hoo hum.

those relays are defined here:

dc_relay_nets='net/20;net/24'

another interface added:

dc_local_interfaces='127.0.0.1:ww.xx.yy.zz:ww.xx.yy.zz'

and now the good stuff...

unfreeze a single message:

exim -Mt messageid

unfreeze the entire queue and resend:

exim4 -qff

unfreeze the entire queue and force resend:

mailq | grep frozen | awk '{print $3}' | xargs exim -v -M 

remove all frozen messages:

exiqgrep -z -i | xargs exim -Mrm

to watch the fun, open up another terminal and

tail -f -n 20 /var/log/exim4/mainlog 

corrupt database:

/usr/sbin/exim_tidydb -t 1d /var/spool/exim retry > /dev/null 
/usr/sbin/exim_tidydb -t 1d /var/spool/exim reject > /dev/null 
/usr/sbin/exim_tidydb -t 1d /var/spool/exim wait-remote_smtp > /dev/null