Gmail

Create a filter for the address

Create a filter to tell Google to whitelist the email from a domain or online group.

  1. Click the cog icon in the top-right corner, and then Settings
  2. Click on Filters and then Create a new filter
  3. Either
  4. Click Create filter with this search
  5. In the box headed When a message arrives that matches this search select Never send it to spam
  6. Click the Create filter button

Outlook

Add the address to your safe senders

  1. Click the cog icon in the top-right corner and then More mail settings
  2. Select Safe and blocked senders and then Safe senders
  3. Add add the domain of the email you want to whitelist to the list of Safe senders
  4. Return to Safe and blocked senders and then select Safe mailing lists
  5. Add the email address of the online group you want to whitelist to the list of Safe mailing lists

Yahoo

Create a filter for the address

  1. Mouse over the Settings menu icon and select Settings
  2. Click Filters and then Add
  3. Enter a Filter Name
  4. Either
  5. Select Inbox as the folder to deliver the email to
  6. Click Save and then click Save again