Junk Email list problem in Windows 11

Understanding the Issue:

• "Blocked Senders" and "Safe Senders" Lists: These are two different lists used by Outlook to determine whether an email is considered spam or safe. It seems that the number of blocked senders and safe senders is quite large, which may be causing performance issues.
• Outlook Web vs. Desktop: The "Block Sender" option in the web version of Outlook moves emails to the Deleted Items folder, which is different from the Desktop version where messages are moved to the Junk E-mail folder.

2. Resolve the "Junk E-mail" Folder Behavior:

First, let's make sure that your Junk E-mail folder is properly set up in Outlook Desktop:

• Check Junk E-mail Settings:
  1. In Outlook, go to Home > Junk > Junk E-mail Options.
  2. Ensure that the correct filtering level is selected. If it's set to "No Automatic Filtering," the manual "Junk" option may not work correctly.
  3. Select Low, High, or Safe Lists Only depending on your preference.
  4. Click Apply and then OK to save changes.
• Junk E-mail Folder Location:
  • Ensure that the Junk E-mail folder is in your primary account's folder list. If it's missing or misplaced, try rebuilding your folder list:
    1. Close Outlook.
    2. Open Control Panel > Mail > Email Accounts.
    3. Choose your account and select Repair.

3. Addressing the Blocked Senders and Safe Senders Lists:

It seems like the large number of blocked/safe senders may be causing issues:

• Clear the Lists: If you have many entries in these lists, consider cleaning them up to reduce potential conflicts.
  1. Open Outlook.
  2. Go to Home > Junk > Junk E-mail Options > Blocked Senders or Safe Senders.
  3. You can manually remove entries that are no longer relevant.
• Import/Export Blocked and Safe Senders: If you need to export or back up your current lists, you can use PowerShell to do so: