Outgoing Email Counts For DirectAdmin Users

Replace $user with the system user and it will return a count of outgoing mails, per-user for the current day ($user and $user.bytes in this directory reset at midnight)

cat /etc/virtual/usage/$user.bytes | grep outgoing | awk -F= '{print $4}' | awk -F\& '{print $1}' | sort | uniq -c | sort -n