Send & Receive Issues

How to Reduce Spam in the Outlook.com Junk Email Folder

Tauseeq Magsi Oct 15, 2026 868 views

Question details

The user wants to know how to effectively reduce the amount of unwanted messages and recurring spam arriving in their Outlook.com junk and inbox folders.

How to Reduce Spam in the Outlook.com Junk Email Folder

Product: Outlook.com
Device & OS: not provided
Scenario: Managing an overwhelming amount of unwanted emails and preventing recurring spam from cluttering the email client.
Observed behavior: Unwanted emails continue to clutter the inbox and junk email folder despite basic automated filtering by Outlook.com.

Before you start

Before applying broad spam rules, create a separate folder and move all your legitimate messages there to prevent them from being accidentally deleted or swept away by new filters.

Solution 1Recommended

Block Senders and Report Junk

Use Outlook.com's built-in junk reporting and blocking tools to handle recurring spam senders directly and improve the spam filter's accuracy.

While Outlook.com automatically filters many unwanted emails, manually blocking recurring senders and reporting messages as junk helps train the system and prevents specific addresses from reaching your inbox again. Note that you should never open links or attachments in suspicious emails.

Select the unwanted email

Log in to Outlook.com and locate the spam message in your Inbox or Junk folder. Check the box next to the message to select it.

Report as Junk

Click on the 'Report' button in the top toolbar and select 'Report Junk' or 'Report Phishing' from the dropdown menu to notify Microsoft's filtering system.

Block the sender

To prevent future emails from this specific address, click the three dots (More options) in the top toolbar, select 'Block', and then 'Block sender'.

Blocked Senders Limit: Blocked messages are automatically routed to your Junk Email folder rather than being permanently deleted, allowing you to review them if needed.

Solution 2

Automate Deletion Using Sweep and Custom Rules

Set up Sweep actions or custom rules to automatically move or delete incoming emails based on specific keywords, senders, or domains.

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Frequently Asked Questions

Why do some blocked emails still show up in my Outlook junk folder?

When you block a sender in Outlook.com, their messages are automatically routed to the Junk Email folder rather than being completely deleted. This is a safety measure that ensures you can still review the folder in case a legitimate email is accidentally caught.

What is the difference between Sweep and Rules in Outlook.com?

Sweep is a quick, streamlined tool used to automatically delete or move incoming emails from a specific sender. Rules allow for much more complex and customizable filtering, such as moving or deleting messages based on specific subject keywords, message size, or recipient addresses.

How can I stop legitimate emails from going to the junk folder?

You can prevent this by adding the sender's email address to your Safe Senders list. Open the email in your Junk folder, click 'Not junk' in the top toolbar, and the sender will be trusted for all future messages, routing them directly to your Inbox.

Outlook & Email Problems