I would start by checking how many bytes the account is receiving per POP3
connection and to also find out how frequent he/she is accessing the
mail service..
This should help - give the below command a shot:
grep user@domain.com /var/log/maillog* | grep retr= | awk {'print $6" "$1" "$2" "$3" "$11'} | grep -v retr=0
Now one on the whole domain
grep domain.com /var/log/maillog* | grep retr= | awk {'print $6" "$1" "$2" "$3" "$11'} | grep -v retr=0
The below command will give you the total bytes transferred.
grep domain.com /var/log/maillog* | grep retr= | grep -v retr=0 | awk {'print $11'} | cut -d, -f1 | cut -d= -f2 | awk '{t += $1} END { print "total: ", t, " bytes transferred over POP3"}'
This should help - give the below command a shot:
grep user@domain.com /var/log/maillog* | grep retr= | awk {'print $6" "$1" "$2" "$3" "$11'} | grep -v retr=0
Now one on the whole domain
grep domain.com /var/log/maillog* | grep retr= | awk {'print $6" "$1" "$2" "$3" "$11'} | grep -v retr=0
The below command will give you the total bytes transferred.
grep domain.com /var/log/maillog* | grep retr= | grep -v retr=0 | awk {'print $11'} | cut -d, -f1 | cut -d= -f2 | awk '{t += $1} END { print "total: ", t, " bytes transferred over POP3"}'
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