We sincerely apologize for the mail delivery bug that caused many
group members to receive multiple copies of group mail. This bug was
introduced when we were working to increase mail delivery speed (one
of our biggest user requests).

We pushed a fix at midnight March 29 (Pacific time), but unfortunately
at that point a backlog of mail was still being delivered. We're
confident that the bug is fixed on our end— however some ISPs may
still be delivering backlogged mail to some users. We're monitoring
your comments and appreciate you letting us know your group's status
on the Groups Team Blog: http://blog.360.yahoo.com/y_groups_team

The Groups product team has also posted a response to user feedback
regarding IFrames and group description in the latest blog entry.

We appreciate your patience and again we're very sorry for the
inconvenience.

-- The Yahoo! Groups Team