yahoo mail admin anywhere?

We have a situation where we/many of our customers are unable to receive email from Yahoo due to broken DNS, which really doesn't look broken. As I don't have error numbers, just undeliverables, automated support is not useful. Off-list is fine, but posting a real honest-to-gosh-real-life contact to NANOG would probably be awesome to more people than just me ;-) Thanks! Randal Kohutek, Data102 randal@data102.com rkohutek@gmail.com because the above probably won't work! 719-387-0000x1337