Just got an email from an Apple Senior Advisor, I sent him the screenshots he asked for, the orignal problem is gone for me, but I am getting the error emails now.
Hello Mark,
My name is Michael and I'm a Senior Advisor with the iTunes Store and this request was escalated to me on your behalf. It is my understanding that you and several others are having issues with your Podcast not being submitted due to error "Couldn't locate hostname in your feed: webproxy-nk-11-ext" but your feed validates through "feedvalidator.org". Please know, I can appreciate your concerns to have this rectified and I'm happy to assist you today.
Mark, I would be more than willing to investigate this matter for you, as well as the others facing the same issue in the Apple discussion board you provided. In order for me to get this investigation started for you I will need you to provide me with the following images:
-Screenshot of your feed being validated through "feedvalidator.org" or any other Feed Validator.
- Screenshot of your Podcast being accepted when manually submitting.
- Screenshot of your computer's screen when you receive "Couldn't locate hostname in your feed: webproxy-nk-11-ext", as well as a copy of the email you received shortly after submitting your podcast, if you still have this email.
Thank you for your patience in this matter, as I can see this has been going on for quite a few days now and I look forward to your reply.
Have a great rest of the day, Mark.
Sincerely,
Michael
Senior Advisor
iTunes Store/Mac App Store Customer Support