You missed the option to forward it to someone else on the company email list, preferably someone with a similar enough name. I occasionally get email for the person whose name appears below mine in the company directory although never in the category described in the article.
Then I'd remove the email catch-all and let the stuff bounce back to sender to teach them to type it properly. It's a minefield to be party to the email of others without an official policy and you're better to just not go there. Hell, paved, intentions, good and all that.