Couldn't send/receive emails up on account setup

Couldn't send/receive emails up on account setup

Hello,
I just setup a zoho mail account for my domain sseemon.tk. I presume that the initial setup is complete. 

1) Email accounts are created on the control panel
2) Logged in to the user account and updated the username details
3) Redirected the MX records to point to zoho servers. 

Tested setting up the account on an outlook client, configured successfully. But I am not receiving any emails and the sent emails are not being delivered to the recipients. Please Help !!

Thanks,
Seemon