Safelist Senders in Outlook Web App

This article describes how to safelist senders through the Outlook Web App interface. If you want to block a sender, see Block senders in Outlook Web App.


  • Applies to: User
  • Difficulty: Easy
  • Time needed: Approximately 15 minutes for change to complete
  • Tools Required: Mailbox access

For more information about prerequisite terminology, see Cloud Office support terminology.

Safelist Senders

Safelisting does not prevent a sender from being flagged as spam. Safelisting ensures that a sender's message is delivered to your inbox, even if the sender is flagged as spam, so that messages from a trusted source aren't overlooked in the junk folder.

For administrator instructions on safelisting senders through the control panel, see Blocklists in Microsoft Exchange.

  1. Log in to your Exchange mailbox at

  2. Click the gear icon in the upper right-hand corner, and then select Options from the drop down menu.

  3. In the Options menu, click Mail > Accounts > Block or Allow.

  4. Enter the email address or domain of the sender that you want to safelist.

  5. Click Save

Note: You can also add all contacts to the safe senders list instead of entering them manually.