Magento contact form can't email same domain

My Magento contact form can send submissions to my personal outlook email account, but when I ask the form to send to the same domain it is hosted on, the email never comes through. E.g. if my domain was [login to view URL] System - Config - Contacts - Send Emails To 'me@[login to view URL]' - This work finds Send Emails To 'help@[login to view URL]' - No email ever comes through.