Emailserver/Postfix

delete mailq

delete mailq of postfix mailserver

all mails

postsuper -d ALL

all deferred mails

postsuper -d ALL deferred

mailq nach absender leeren/delete mailq by sender

mailq | tail +2 | grep -v '^ *(' | awk  'BEGIN { RS = "" } { if ($8 == "recipient@mydomain.tld" && $9 == "") print $1 } ' | tr -d '*!' | postsuper -d -