Excessive bandwidth consumption by email

Hello,



One user have consumed excessive bandwidth for two days:



DATE Apache Email Ftp Pop Imap DirectAdmin Other Total Email Deliveries (Sent)

2015 02 22 11.5 MB 2.53 GB 0 B 0 B 0 B 0 B 0 B 2.54 GB 178 (1)

2015 02 23 23.5 MB 7.73 GB 0 B 0 B 0 B 0 B 0 B 7.75 GB 382 (9)



Checking bandwith.tally of this user, I see more than 350 lines like these:



...

30407547=type=email&email=augustosar@**************&method=incoming&log_time=1424735283&id=&path=/var/log/exim

30407547=type=email&email=augustosar@**************&method=incoming&log_time=1424735567&id=&path=/var/log/exim

30407547=type=email&email=augustosar@**************&method=incoming&log_time=1424735859&id=&path=/var/log/exim

30407547=type=email&email=augustosar@**************&method=incoming&log_time=1424736146&id=&path=/var/log/exim

30407547=type=email&email=augustosar@**************&method=incoming&log_time=1424736431&id=&path=/var/log/exim

...



You can see that size of each incoming mail is 30M. I have searched them in all logs stored in /var/log/exim, but I haven't found any log about these incoming mails.



Any idea?



Thank you in advance.



Kind regards,

Excessive bandwidth consumption by email