[Exim] Is this Spamming

Hello All,

I have been seeing these processes on my server and I doubt if this is
Spamming , How do i find out if any user is trying to send/receive message
heavily from the log. I have this much info from the server and didn;'t
check the log my misktake :(

Regards,
Tina.
=======================================
Here is the Process status :

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