Best Ways to Fix “Outlook Spam Filter Not Working” in 2025

Why Is My Outlook Doesn’t Always Catch Junk?

Before going into fixes, it’s important to understand why your Spam emails not going to Junk. 

• Incorrect or outdated spam filter settings.
• Email rules that interfere with spam filtering.
• Junk email list not updated or too lenient.
• Third-party add-ins conflict with Outlook.
• Also, Outlook or email server glitches.

Simple Methods to Fix Outlook Spam Filter Not Working

If your Outlook spam filter isn’t working, there are several effective methods to resolve this error. Let’s explore each method in detail without any hassle.

Check & Update Junk Settings to Fix Outlook Not Filtering Spam

Start by reviewing your spam filter settings in Outlook:

1. Firstly, open Outlook and go to Home > Junk > Junk E-mail Options.
2. After that, set the filter to High to catch more spam.
3. Now, review the Blocked Senders List to make sure addresses are included.
4. Lastly, check the Safe Senders List to avoid blocking important contacts.

Review & Modify Outlook Rules to Fix Outlook Spam Filter Not Working

Sometimes, Outlook rules you create to organize emails can override spam filtering:

1. Primarily, go to Home and choose Rules > Manage Rules & Alerts.
2. Then, check if any rules delete emails before the spam filter acts.
3. In the end, disable or modify conflicting rules and test the filter again.

Check Conflicting Add-ins to Fix Outlook Junk Filter Not Working 

Add-ins can improve Outlook, but may interfere with spam filtering:

1. Open Outlook in Safe Mode (hold Ctrl while launching Outlook).
2. If spam filtering improves, disable add-ins via File > Options > Add-ins.
3. Finally, restart Outlook and check if the issue persists.

Update Outlook & Microsoft 365 to Resolve Outlook Email Spam Filter Not Working Issue

1. Firstly, make sure your Outlook and Microsoft 365 apps are up to date.
2. Then, go to File > Office Account > Update Options > Update Now.

How Corrupted PST Files Can Impact Outlook Spam Filter Not Working Issue

If Outlook’s data file (PST) is damaged, it may create this problem. Use the MigrateEmails PST Repair Tool to scan and repair corrupted PST files. This tool can help resolve spam filtering issues related to file corruption. It can offers several recovery modes for quick and hassle-free recovery. With its simple interface, everyone can easily use it, and it helps to fix emails not showing up in Outlook and more. Also, the demo (Free) verison of this tool is accessible to understand its features and performance.

How to Fix Corrupted PST Files Professionally?

1. Firstly, download & install the MigrateEmails PST File Repair.
   
 
2. Now, click on Open and add the corrupted PST file.
   
 
3. Then, choose Recovery mode & other features. Click OK.
   
  
4. After that, preview the recovered Outlook PST file.
   
 
5. Lastly, click Save and choose Saving Format. Hit OK.
   

Conclusion

In this technical blog post, we explained several methods to resolve Outlook Spam Filter Not Working 2025. Outlook’s spam filter is used for a clean and secure inbox. You can check settings, manage rules, update software, and repair PST files to fix this problem. Moreover, if your Outlook PST file is severely corrupted and creates errors, you can use the professional tool.

Frequently Asked Questions

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