I listed a T-shirt from Jägermeister today on Ebay, and I did a little research beforehand. Cut to the chase, I had to list the T-Shirt using "Jagermeister", in other words, no umlaut, in order to get the best chance at selling it. (It got a bid already, by the way!) I initially listed it using "Jaegermeister" but discovered that was not going to be the best route to go. So, as a German connoisseur (okay, I flatter myself) it hurt me to list it that way, since it essentially bastardizes the original and the company name, let's not forget. My question is whether it would be a huge faux paus in German and/or would it immediately strike a native German speaker as unacceptable to write: Jagermeister.