When you’ve created a rule to directly delete the most obvious spam messages, rather than letting them go to the Junk E-mail folder, you might have noticed that this method isn’t always successful.
This is because once a message has been marked as Junk via the Junk E-mail Filter, no rules will be executed for that message. The reasoning behind this is to prevent it from being moved out of the folder again or to have any other undesirable action being executed because of it (like auto-replying to it).
While you could still manually execute your anti-Junk rules against the Junk E-mail folder to speed up your reviewing process, it is a quite cumbersome process to get to the option and select the rules to execute.
With the VBA macro from this guide, you can execute all your anti-Junk E-mail rules against your Junk E-mail folder with a single click.
Continue reading: Applying message rules to the Junk E-mail folder