@FunkFuMaster
The cause would be the email being fetched from receiving an email from the helpdesk. This could mean for example an alert is being sent from the system and winding up in the email that's being fetched which would obviously cause a loop as the alert would be fetched, create a ticket, send out an alert, that alert would wind up in the inbox and start the loop all over again.
We don't have access to your inbox or system so you'll have to do some investigating to figure this out.
Cheers.