For those of you participating in the Yahoo Feedback Loop program, be aware that any new IPs or modifications to your existing program are currently on hold.
Yahoo! reciently updated their Postmaster pages and posted the following notice:
Due to the success of our beta program, we are currently making changes to the application process for the Yahoo! Mail Complaint Feedback Loop program. As such, we are *not* processing new applications at this time. We do hope to re-launch an improved, more streamlined online process for interested participants soon.
This appears to be part of the ongoing changes and process updates that Yahoo is undergoing, that were discussed in a recent post; Yahoo! Reaches out to Senders. Hopefully these changes will be made quickly and the application/update process will return to normal, keep an eye out for updates on this and other ISP related news.