If you do not want me to see them, please don't reply using your email program. You should always click the link in your email instead. Doing that will take you directly to your PM system where you can reply.
So, if you reply to the email you get that notifies you about the PM, it will come to me instead.
I will NOT relay these to your intended recipients. Sorry, but I have enough going on and adding the responsibility of relaying 10-20 PM's per day is not in the cards.
That is all. Carry on
One thing that many lists do (and it IS a convenience) is for the PM Notification Email to NOT include the text of the PM, but only provide a link to the proper place back at WG, where a proper reply can be done.
That would save you a lot of traffic, because if there's nothing to reply to, no one will try to reply to the wrong Email address.
If that's a software "setting", I highly recommend it. If it's a "you gotta pay for that customization", then forget it!