Bandwith limit almost reached in one day IMAP

Hi,

One of my users used up almost all of her bandwidth. When I checked what happened, I found IMAP used 800Mb in one day. Normal days are between 1 an maybe 15Mb per day. On that day, 21 mails were sent, which is about average compared to other days.
Is there any way to trace what happened here? Some log file I could check?

Thanx,

Arjen

Hi,

Did you find an answer to this issue? I am experiencing a similar situation.
Thanks in advance.

Isaias

If the accounts are from Apple Mac-users, then there's a known issue that could occur sometimes with the Apple Mail program and IMAP causing lots of traffic;
https://discussions.apple.com/thread/818165?tstart=0

Might look want to look into this.