Hell Azharuddin,
There is no direct filtering mechanism for inbound emai also no whitelisting option for sending email.
To achieve this you can create one entity where you can maitain the the email which is allowed.
When sending/receiving email in email module microflow you can check the the to/from email and add your logic.
Hi Azharuddin,
There is not out of the box feature available for the same
We need to write custom logic to achieve the same.
Regards
Ajay