Disabling PO Approval Email Notifications for specific user

Summary

I would like to turn off the email notification sent when a PO requires approval

Content

Hi,

Is it possible to disable the email notification an approver receives when a purchase order requires approval? I am part of an approval group for PO's and would only like to see my notification in the system itself (BPM). The reason for this is that each email can be up to 1MB each and I receive 100+ per day. This has a detrimental effect on my email quota when on leave (can block any further emails from coming through).

I have a rule set up to send these email notifications to my deleted items BUT cannot set a rule up to delete from here. They need to be manually deleted.