Can't send spam to junk from In folder

Question

My Mail app is acting funny, main prob is that it takes minutes to send spam from In folder to Junk (in fact it seems to be refusing to do so at all now, the coloured beachball just keeps turning) . Also it has just now marked as unread all 4,000+ items in my In folder as unread. Problem seems to have started after I installed Junkmatcher because lots of junk was evading built in spam filter and arriving in In box. I have deactivated Junkmatcher which didn't work at all and made everything v slow, I have put it in trash but it won't empty it from trash, says it is still in use. I have OS10.3.9.
Any suggestions,
Thanks,
Michael
London

Answer 1

Hello Michael.
I copied the following from JunkMatcher's website for disabling or removing the application.
Remove the 3 rules the installer added for you: they are "Built-in Junk Filter", "JunkMatcher", and "Full Stop".
You can also just temporarily deactivate the "JunkMatcher" rule without uninstalling, and later you can turn JunkMatcher back on by activating this rule again (in that case don't remove the items listed below!).
Quit Mail.app.
Quit and remove JunkMatcher.app.
Remove folder ~/Library/Mail/Bundles/JunkMatcher.mailbundle.
Remove folder ~/Library/Application Support/JunkMatcher.
Remove folder ~/Library/Preferences/edu.cmu.cs.benhdj.JunkMatcher.plist.
The recommended mailbox size limit for Jaguar or Panther Mail is 1GB. Since an account's Inbox mailbox is usually the most active mailbox and more prone to corruption over time, it is not a good idea to use an account's Inbox mailbox as the final storage location for all received messages not deleted.
Better to create/utilize "On My Mac" location mailboxes to sort received messages by category that you need to save.
If you want to remove JunkMatcher completely, follow the removal instructions provided first.
After doing so and with the Mail.app quit, using the Finder go to Home > Library > Mail > this POP account named folder (named by the user name and incoming mail server for the account) > INBOX.mbox. The INBOX.mbox represents the account's Inbox mailbox in the mailboxes drawer under "In".
Move the INBOX.mbox to the Desktop.
When re-launching Mail, a new (and empty) INBOX.mbox will be created automatically by Mail within the account named folder which will allow the Mail.app to function properly again while working on the old INBOX.mbox moved to the Desktop.
Control-click on the old INBOX.mbox moved to the Desktop and at the menu window that appears, select Show Package Contents.
List the package content file names and size of each here.