Outlook.com Mail is a web-based email service. With Outlook Mail, users can send and receive emails, manage their inbox, create and organize folders, and use features such as the junk mail filter and rules to manage their email. Now plenty of Outlook users are facing “Outlook.com Spam Filter Not Working”, “Microsoft Outlook Junk Email Filter Not Working” issue?
Why is Outlook.com Spam Filter Not Working?

There could be several reasons for Outlook.com Spam Filter Not Working. Here are some possible causes and solutions:
- The spam filter settings are not configured correctly: Check your spam filter settings and ensure that they are set up correctly. Go to Settings > Mail > Junk email to verify that your spam filter is turned on and that the settings are configured to the desired level of protection.
- The spam filter is being overridden: If you have rules set up to move messages to specific folders, it’s possible that the spam filter is being overridden. Review your rules to ensure that they are not interfering with the spam filter’s ability to catch spam messages.
- The spam filter is not catching all spam messages: Unfortunately, no spam filter is 100% effective, and some spam messages may still make it through. If you notice that a particular sender is consistently sending you spam messages that are not being caught by the filter, you can block the sender to prevent their messages from reaching your inbox.
- The spam filter is too aggressive: On the other hand, the spam filter may be catching too many legitimate messages and sending them to the Junk folder. In this case, you can adjust the filter’s sensitivity level in the Junk email settings.
- Technical issues: It’s also possible that there is a technical issue with the spam filter system, which is preventing it from working correctly. In this case, you may need to contact Outlook.com support for assistance.
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How to Fix “Outlook.com Spam Filter Not Working” Problem?
If you’re experiencing issues with your Outlook.com spam filter not working properly, there are a few things you can do to try and resolve the problem:
1. Check your spam folder
Sometimes legitimate emails can end up in your spam folder, so make sure to check there first. If you find legitimate emails in your spam folder, mark them as “not spam” to help improve Outlook.com’s spam filter.
2. Adjust your junk email settings
Outlook.com has a built-in junk email filter that you can customize. To adjust your junk email settings, go to Settings > View all Outlook settings > Mail > Junk email. From there, you can choose to block or allow specific email addresses, domains, and senders, as well as adjust your overall junk email settings.
3. Use the “Sweep” feature
The “Sweep” feature in Outlook.com allows you to quickly clean up your inbox and remove unwanted emails. To use the Sweep feature, select an email in your inbox, click on the “Sweep” icon in the toolbar, and choose the action you want to take (e.g., delete all emails from the sender, move all emails from the sender to a specific folder, etc.).
4. Check your email forwarding settings
If you have email forwarding set up, it could be causing issues with your spam filter. Check your email forwarding settings to make sure they’re set up correctly and not causing unwanted emails to bypass your spam filter.
5. Contact Microsoft support
If none of the above steps work, you may need to contact Microsoft support for further assistance. They can help you troubleshoot the problem and find a solution that works for you.
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