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How to add email addresses to the safe/blocked senders list in Outlook?

Author: Siluvia Last Modified: 2025-04-14

Outlookโ€™s "Junk Email Filter" helps protect you from spam, but it isnโ€™t always accurate. Sometimes, legitimate emails end up in the Junk Email folder, while unwanted emails still reach your inbox. If important emails are consistently marked as spam, you can whitelist trusted senders by adding them to the "Safe Senders list". Similarly, if spam or unwanted emails frequently appear in your inbox, adding them to the "Blocked Senders list" ensures they are filtered out automatically.

This article introduces three methods to achieve this, with "Kutools for Outlook" recommended for its efficiency in handling multiple addresses at once.

Add a single email address to the safe/blocked senders list (Basic & Manual)

Add multiple email addresses to the safe/blocked senders list instantly with Kutools for Outlook ๐Ÿ‘ (Effortless & Recommended)

Manually add email addresses to the safe/blocked senders list via Junk E-mail Options (Flexible & Manual Input)


Add a single email address to the safe/blocked senders list

Outlook provides two built-in featuresโ€”"Never Block Sender" and "Block Sender"โ€”that allow you to quickly add an email address to the safe senders or blocked senders list.

1. Select the email from the sender you want to add to the "Safe Senders list," then click "Home" > "Junk" > "Never Block Sender."

the screenshot of step about adding one email address to safe/blocked senders list with Never Block Sender or Blocked Sender feature 1

Tip: To add a sender to the "Blocked Senders list," click "Home" > "Junk" > "Block Sender" instead.

2. A confirmation box will appear, notifying you that the sender's address has been added to the list. Click "OK" to close the dialog.

the screenshot of step about adding one email address to safe/blocked senders list with Never Block Sender or Blocked Sender feature 2

Limitations of This Method:

  • One address at a time: Cannot add multiple addresses at once, making it inefficient for bulk management.
  • Requires an email from the sender: Cannot manually add addresses; use Junk E-mail Options for manual entry.

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Add multiple email addresses to the safe/blocked senders list instantly with Kutools for Outlook ๐Ÿ‘

If you need to add multiple email addresses at once, doing it manually one by one is time-consuming and tedious. "Kutools for Outlook" provides a "one-click solution" that allows you to "batch-add" multiple addresses to the safe or blocked senders list effortlessly.

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1. Select multiple emails from the senders you want to add to the "Safe Senders list," then click "Kutools" > "Junk" > "Never Block Senders."

the screenshot of the Never Block Senders option

Tip: To block multiple senders in bulk, click "Kutools" > "Junk" > "Block Senders" instead.

2. A confirmation box will appear, notifying you that all selected email addresses have been added to the list. Click "OK" to finalize.

the screenshot of the confirmation box

Advantages of the Kutools for Outlook Method:

  • โœ… Batch processing: Add multiple email addresses at once, saving time.
  • โœ… No manual input required: Select emails, and Kutools extracts the addresses automatically.
  • โœ… One-click operation: No need to open multiple dialogs or enter email addresses manually.
Note: To apply the "Never Block Senders" or the "Block Senders" utility of Kutools for Outlook, you must first download and install Kutools for Outlook.

Demo: Add multiple email addresses to the safe/blocked senders list instantly with Kutools for Outlook

 

Manually add email addresses to the safe/blocked senders list via Junk E-mail Options

If you donโ€™t have an email from the sender but know their email address, you can manually add addresses through "Junk E-mail Options" in Outlook.

1. Click "Home" > "Junk" > "Junk E-mail Options."

the screenshot of step about adding multiple email addresses to safe/blocked senders list with Junk E-mail Options 1

2. In the "Junk E-mail Options" dialog, go to the "Safe Senders" tab and click "Add."

Tip: To add email addresses to the "Blocked Senders list," go to the "Blocked Senders" tab instead.

3. In the "Add address or domain" box, enter the email address you want to whitelist and click "OK."

the screenshot of step about adding multiple email addresses to safe/blocked senders list with Junk E-mail Options 2

Tip: Repeat this step for each additional address.

4. Click "OK" to save changes and close the "Junk E-mail Options" dialog.

Additional Settings for Safe Senders:

  • Trust contacts automatically: Check "Also trust email from my Contacts" to ensure all contacts in your Outlook address book are treated as safe senders.
  • Automatically whitelist people you email: Check "Automatically add people I email to the Safe Senders List" to prevent emails from your recipients from being marked as junk.

Limitations of This Method Compared to the Kutools for Outlook Method:

While the "Junk E-mail Options method allows manual management of safe and blocked senders, it has key drawbacks compared to Kutools for Outlook:

  • Manual entry: Each email address must be typed or copy-pasted individually.
  • No batch processing: Only allows adding addresses one by one.
  • Time-consuming for large lists: Inefficient if handling many addresses.
  • Slower process: Requires navigating multiple dialog boxes.
  • Higher risk of errors: Typing manually increases the chance of typos.

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