postfix queue - HillLiu/docker-postfix-sasl-dkim GitHub Wiki
Backup
mkdir -p /tmp/a
cd /tmp/a
mailq | grep "^[A-F0-9]" | awk '{ gsub("*","",$1); print $1 }' | xargs -I{} sh -c 'postcat -bhq $1 > $1' sh {}
tar zcvf a.tar.gz ./a
docker cp docker-postfix-sasl-dkim_mail_1:/tmp/a.tar.gz ./
docker cp ./a.tar.gz docker-postfix-sasl-dkim_mail_1:/tmp
check file numbers
ls -la |grep "^-" |awk 'END {print "Number of files: " NR}'
count mail queue
mailq | grep -c "^[A-F0-9]"