Whitelist Email Address in O365

Whitelist Email Address in O365

How to Whitelist Email Address in Office 365

1. Open the Exchange Admin Center.
2. Click on Protection.
3. Click on Spam Filter.
4. Double click on Default.
5. Click on Allow Lists.
6. Under Allow Lists, click the + to add a new email address.
7. In the window that pops up, add the address you’d like to let through.
8. Click Save.
9. Click Save again.

That’s it! Now email from that address will be delivered to your organization’s inboxes, not marked as junk.

More Detailed Instructions for Whitelisting Emails

1. Sign into Office 365: Go to https://portal.office.com and sign in.
2. Click on Admin from your list of apps.
   
3. In the left-hand column, click on the Admin Center icon, then click Exchange to open the Exchange Admin Center.
   
4. Click on Protection from the left-hand menu.
   
5. Click on Spam Filter.
   
6. Double-click on Default.
   
7. In the pop-up window, click on Allow Lists.
   
8. Under Allowed Sender or Allowed Domain, click the + to add a new email address. Be careful about allowing whole domains, as entering popular domains here like gmail.com can allow bad actors to bypass filtering.
9. In the window that pops up, add the address you’d like to let through.
   
10. Click OK.
11. Click Save.

That’s it! Now email from that address will be delivered to your organization’s inboxes, not marked as junk.