explosive outgoing POP3/IMAP traffic

[empeetrois]

Last month 1 domain had 90 GB outgoing email traffic. The month before it had 200 MB. This month he has already 50 GB outging email traffic.

How can I see wich mailbox uses that traffic? Or do you think there is something wrong?

 

[lpittman]

I have the same issue this month - anybody?

Luke