That's an interesting point. A while ago I got an email that was clearly not intended for me with some big confidentiality warning on the bottom.

So I did as it said, deleted the email and informed the sender. Got a reply back saying "oh, sorry it was intended for xxx@xxx.com".

So then I get another one a few days later, this time I deleted it and forwarded it to the intended recipient. Then I informed the sender again getting no response.

Now about once a week I get this stuff into my account (which is basically a throwaway I hardly log into).

I assume I'm not expected to somehow play secretary for these people.