I have updated my MX records for the domain "australasiancentreforworkeducation.com" with the following:

Mail For Zone Priority Assigned To Server
australasiancentreforworkeducation.com  10  mx.zoho.com
australasiancentreforworkeducation.com  20  mx2.zoho.com
www.australasiancentreforworkeducation.com  10  mx.zoho.com
www.australasiancentreforworkeducation.com  20  mx2.zoho.com

Its been over 24 hours since I did the change and I am yet to receive emails from external domain.
Please help.