How to see the Senders that send the most emails within a given time?
Concerning my Google Administrator's Reporting tools, is there a way to see the actual Senders that send the most emails within a given time? For example, if I wish to see which Sender email addresses are sending many emails to my domain users, can I find that information? These are not necessarily spammers that I am looking for.
I know I can do it if I know the email address, though I would like to just see the bulk senders each day without already knowing the sender's address.