How To Whitelist An Email In Office 365. Select “bypass spam filtering” on the menu after clicking on the plus icon; It's also possible to whitelist all emails associated with a domain.
For example, to mark all email from addresses that end in contoso.com as safe, enter contoso.com in the text box. There are various organizations and email blacklist services around the world that exist to prevent spam, mass emailings, virus and worm spreading, and general malicious emailing. Something simple such as whitelist suffices.
This email address is now on your safe senders list in office 365.
You will require 'global admin' access to your office 365 account in order to follow this guide. Furthermore, we need a complete dnr (within three days) to see more detailed information. In the box, enter the email addresses or domains that you want to whitelist, and select the add button. Write a new name for the rule in the text box.