Summary
Microsoft may flag a message as spam when it isn't. These emails will show up in your Junk Email folder and may be labeled KU SUSPECT SPAM. By adding the sender address to your safe sender list, it ensures that sender's future messages go to your inbox instead of your junk email folder.
Outlook - Mac
Reporting Emails as "Not Junk"
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Select the Junk Email folder from your sidebar. These folders aren't necessarily in alphabetical order.

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Click on the message in your Junk Email Folder.
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Click the arrow to the right of Report from the upper menu and select Not Junk.

Safe Sender List Management (Add, Remove, Manage)
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On the Tools menu, click Junk Email Preferences.

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Select Safe Senders.
Either click the + at the bottom of the window to add an email address.
Select an email address in the list to edit or delete from the list. Use the - to delete a selected email address.

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When adding a new safe sender. Type in the email address or domain name you would like to add to the list the press Return.
Outlook Web App (OWA)
Reporting Emails as "Not Junk"
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Select the Junk Email folder from your sidebar. These folders aren't necessarily in alphabetical order.
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Right-click the message in your Junk Email folder.
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Click Report, then click Not junk.

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You will then be asked if you would like to report the message. We recommend you report false positives to Microsoft. Whichever option you choose the email address will still be added to your safe senders list.

Safe Sender List Management (Add, Remove, Manage)
These instructions will assist you in managing your safe senders list. Steps 1-3 will get you to the correct location.
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Click the Settings (cog) icon in the upper right.

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Select Mail on the left of the Settings pane.

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Select Junk Mail from the center list of options.

Adding Safe Sender
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Click Add safe sender under Safe senders and domains.

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Enter the email address of the user you want to ensure gets to your inbox and click OK. This will add the email address to your list of safe senders. 
Updating, or Removing Safe Senders
To remove or edit an existing entry in the list. Simply locate the address and click the pencil to edit or trashcan to delete the entry as shown below.
Outlook - Windows
Reporting Emails as "Not Junk"
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Select the Junk Email folder from your sidebar. These folders aren't necessarily in alphabetical order.

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Right-click the message in your Junk Email folder.
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Click Report, then click Not junk.

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You will then receive the below message confirming the email address has been added to your Safe Senders list.

Safe Sender List Management (Add, Remove, Manage)
These instructions will assist you in managing your safe senders list. Steps 1 & 2 will get you to the correct location to add a safe sender. To update or remove a safe sender click here.
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On the Home tab, click Block, and then click Junk E-mail Options.

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On the Safe Senders tab, click Add.

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In the window that opens enter the email address or domain to be added to and click OK. This will add the email address to your list of safe senders.

Updating, or Removing Safe Senders
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Find the address in the list and then select Edit or Remove as shown below.

Article Changelog
1/24/2026
- Article updated to basic visual standard.