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How to Manage Block and Allow Lists in OWA

The Block or Allow settings in Outlook allows you to control unwanted or unsolicited email messages that you receive in your Mailbox by creating a list of email addresses, users, and domains that you don't trust and you trust. In this article, you will learn how to:

Add Blocked Senders in OWA

Outlook will automatically filter emails from blocked email addresses and domains to your Junk Email. Follow the steps below to add Blocked Senders in OWA.


Step 1. Log In to your Outlook Web Access (OWA).
Step 2. Click on the Settings/Gear Icon at the top right corner of the page then select Options.
how to add blocked senders on owa
Step 3. Go to Mail, under Accounts click on Block or allow option.
how to add blocked senders right side menu
Step 4. To add Blocked Senders enter the sender’s email address or domain in the text box provided and click the Add Icon next to the text box or hit the Enter key from your keyboard.
add blocked senders window on owa (Optional) You can select Don’t trust email unless it comes from someone in my Safe Senders and Recipients list.
Step 5. Click the Save button to apply changes.

Add Safe Senders in OWA

Outlook treats all emails from Safe Senders or Allow Senders as safe and trusted email addresses or domains. Follow the steps below to add Safe Senders.

Step 1. Log In to your Outlook Web Access (OWA).
Step 2. Click on the Settings/Gear Icon at the top right corner of the page then select Options.
how to add safe senders on owa
Step 3. Go to Mail, under Accounts click on Block or allow option.
how to add safe senders right side menu
Step 4. To add Safe Senders enter the sender’s email address or domain in the text box provided and click the Add Icon next to the text box or hit the Enter key from your keyboard.
how to add safe senders window on owa (Optional) You can select Trust email from my contacts check box to treat emails from any address in your contacts folders as safe.
Step 5. Click the Save button to apply changes.

Delete Blocked or Safe Senders in OWA

Follow the steps below to delete blocked or safe senders in OWA.

Step 1. Select the email address or domain from the list and click on the Delete Icon.
delete blocked or safe senders on owa
Step 2. Click the Save button to apply changes.

You can also learn more on how to create rule to email messages, or folders on Outlook in this linked guide. Please let us know if you need further assistance or if you have any questions. We’d love to help!

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