CAF:GP:MailConnector:run():insideCycle from J2ee_Guest user causes more CPU and Resources utilization is happening.

Followed procedure for stopping specified request:
Go to Visual Admin > Global Config > Services > caf/eu/gp/model
Set mailconnector.start_thread = false.
Needs a restart.

https://forums.sdn.sap.com/thread.jspa?threadID=1157363&tstart=0

https://forums.sdn.sap.com/thread.jspa?messageID=6622200&tstart=0