On Yahoo’s Mail blog you will find a notice for bulk senders, ISPs, and commercial emailers, describing the delays and steps that need to be reviewed when reaching out to the Postmaster team in order to help with issues your experiencing.

Key items from this posting:

  • The Correct form is accessible from the Postmaster section in Yahoo! Mail Help (http://postmaster.yahoo.com) site.
  • Follow-up inquiries from senders delay things even more as they create additional queue items.
  • Be careful when you fill out the form, double check for completeness and accurately. This prevents a lengthy back and forth dialog that delays your progress.

Read the full article: Delays responding to Postmaster requests