Well, it had "post" for me, and I hadn't logged in, and when I pushed it, it reminded me to do so, and then made no problems. But I was already registered with them, so maybe that made the difference.

But I'll be happy to forward on any messages to then, and make clear where they come from too. (Always assuming the Mudcat doesn't go down again, and the Guardian site doesn't play silly buggers. Right now I'll send on yours DMCG as requested.)