A friend of mine asked me how I filter KLEZ in my Outlook mail client. I have two rules for this, and they look like so:
Apply this rule after the message arrives with Content-Type: audio/x-midi; in the message header and which has an attachment delete it
The second rule is the same, except the content type is “audio/x-wav”
instead of “audio/x-midi“. You also might want to use the “permanently
delete” action instead of the regular delete. I’d also advise that you
turn off the Preview Pane for your Deleted Items folder.
And of course the most important thing you should do is to run some
antivirus software, keep it up-to-date, and also keep your Windows system patched.
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