How to set the mail handler to accept all domains?

Version 1

    Details

    We would like our email listener to accept all emails even emails from untrusted domains.  Is this possible?


    Resolution

    Setting your mail handler to accept all domains can leave your tenant open to SPAM and other issues - but it can be done.

    Here are the steps to allow the mail handler to accept email from all domains:
    1. Log in to the tenant under the Admin role
    2. Click on More -> Email Config
    3. Click on 'Trusted Sender Domain'
    4. Click on New
    5. Specify the value: *

    Now you will accept email from all domains.