The second polite thing to do is to call the restaurant and ask what their policy is regarding bringing wine to dinner. (inc.com)
While it's not the most polite thing to do, if you are extremely busy, and you are pretty comfortable with the people you are introducing, it's fine to make a non-double opt - in email introduction as long as you apologize and let both parties know the situation (entrepreneur.com)
Just last year, Karl Lagerfeld was caught saying some less - than - polite things about the Kardashians, but he seems to have come around on the family: The Kaiser shot a very pregnant Kim in an editorial for the fall issue of CR Fashion Book, and now he's playing a part in Jenner's fast ascent to blue chip model status. (fashionista.com)