An email from the Booking page created email Id not being sent to its Mailbox

Hello,

When a booking is created on the booking page by a customer, which in turn created an email id such as "bookingpage@abc.onmicrosoft.com".

bookingpage@abc.onmicrosoft.com should receive an email from itself for any of the booking created/rescheduled/cancelled.  

We did add "send customer replies to" on Booking information page which enables auto forwarding from bookingpage@abc.onmicrosoft.com to the email mentioned on Send customer replies to.

Issue is, when booking is created, the customer and staff gets the email from bookingpage@abc.onmicrosoft.com but not to itself as a notification.

When we create a new booking page, which sets a new emailID.  Everything is working fine and all expected emails are being received to related recipients of booking.

Any thoughts or idea on the issue resolution is appreciated.

Thanks,

Mahendra