Remote website email issue
My website hosting service (Shift4shop) stopped providing email service for my domain. I have moved it to Inmotionhosting. But .... when I try to send emails from my Shift4shop website (e.g. order acknowledgements) nothing is sent (e.g. an order from my gmail account). But if I do a test order with an account using my domain, the email is successfully received.
Any idea why Shift4shop would only allow emails to my domain?