How to Block Spam in Windows Mail in 6 Easy Steps
Let me introduce to you a fantastic Windows Mail spam blocker tool, compatible with all versions of Windows. Whether you're using Windows 10, Windows 11, or any other version, Clean Email is your go-to solution for keeping your inbox tidy and free from pesky junk mail.
Just give it a try - you have 1000 emails to clean for free and no credit card is required!
Here is how to block spam:
- Sign in to Clean Email with an email account you’re using in Windows Mail.
- Click Inbox or All Mail in the Menu on the left.
- Select all the message groups that are spam.
- Tap the Create Rule on the bottom.
- Then find the Apply Action section and choose Mark as Spam from the drop-down list.
- Click Create Rule.


Congratulations! Now, all your junk emails from Windows Mail are gone to the Spam folder. Moreover - all the new emails will be cleaned automatically by the Auto Clean feature you already have set up.
As you can see, it takes just six simple steps for Clean Email to accomplish something that might take hours to do when relying only on the native features present in Windows Mail. That’s why, Clean Email can be your Windows Spam Filter tool, being able to stop junk emails automatically.
Does the Windows Mail App Support Email Filters / Rules?
No, the Windows Mail app for Windows 10 doesn’t support email filters/rules, and since Microsoft ended support for it, it can no longer send or receive email at all. If you would like to take advantage of them to better organize your messages, then you can use a third-party email client like Clean Email.
💡 Note! Support for Windows Mail, Calendar, and People ended on December 31, 2024.
Windows 11 now ships with the new Outlook as the default mail app, and Microsoft recommends switching to it or to Outlook.com.
Here is a video demonstrating effective techniques to manage spam and other messages in Outlook, helping you clean annoying emails.

Windows Mail Junk Settings
You can no longer mark emails as junk in Windows Mail. Microsoft ended support for the Mail and Calendar apps on December 31, 2024, and they can’t send or receive email anymore, so the app’s Mark as Junk option no longer reaches your mailbox.
Microsoft recommends moving to the new Outlook for Windows or Outlook.com. For Outlook.com, Gmail, and other IMAP accounts, the Junk folder is stored by your email provider, so messages you already marked as junk are still there when you add the same account to Outlook. Local emails, events, and contacts saved only in Mail can still be exported.
💡 Note: We’ve also written a step-by-step guide on how to mark a message as spam in the Outlook desktop app on Windows.
Unlike the Mail app, which only had basic features like receiving and sending emails, the new Outlook also supports email filters, also referred to as inbox rules, so you can move messages from persistent senders automatically.
For these and other reasons, the users of Windows 8, Windows 10, and Windows 11 should equip themselves with a third-party inbox cleaner like Clean Email. With its help, getting rid of unwanted messages and preventing them from ever again finding their way into your inbox becomes effortless.
Mark Messages as Spam in Windows Mail Using Clean Email
Clean Email provides a wealth of useful inbox and spam management features that Microsoft decided not to include in the Windows Mail application for the sake of keeping it simple enough for casual users to get started within no time. Hence, the Windows Live Mail spam blocker feature doesn't work well, it may be available through an external tool.
By default, Clean Email groups messages in the Inbox folder by:
- sender (name and email),
- email address,
- sender domain,
- subject,
- date,
- recipients,
- labels.
These extensive grouping options make it much easier to select each and every spam message you want to get rid of. You can even combine them with Clean Email’s Auto Clean feature to instantly create email rules based on them. Here’s how:
- Open your favorite web browser, go to https://app.clean.email, and sign in to the email account associated with the Windows Mail app.
- Open the Inbox folder.
- (Optional) Use the Group By dropdown menu to change how messages are grouped.
- Tap the icon next to each message group you want to select.
- You can now:
- Click the Spam button to mark all selected messages as spam.






- Or click the Create Rule button to create a new Auto Clean rule based on the selected messages. With this rule, you can choose to Mark as Spam all future (and existing) similar emails automatically.


Clean Email significantly simplifies the process of blocking junk mail in Windows Live Mail, achieving results in just a few steps.
💡 Tip: Email spam can be relentless, and it’s completely understandable if you want to take a break from it. Clean Email makes this easy with its Screener feature, which can be enabled to hold messages from new senders outside of your inbox until you decide which of them you want to keep.


FAQ
When does Windows Mail delete spam messages?
Windows Mail didn’t control this. For Outlook.com, Gmail, and other IMAP accounts, the Junk folder is stored by your email provider, so how long spam is kept before automatic deletion depends on your email provider’s settings.
What should I do if messages end up in the Junk folder by mistake?
If a message ends up in the Junk folder by mistake, you should move it to your Inbox or any other suitable folder to prevent it from becoming automatically deleted.