[Mailman-Users] Auto responder problem?

[Glo]

Help,
I am running MM2.1.1 on Redhat 7.3 with Sendmail 8.11.6.
I have had my list linked to a Yahoogroups list for 8 or 9 months.  Suddenly
Yahoo has disabled my list address stating that I am running an Auto
Responder.  I have checked and all the auto responders are turned off.  Does
anyone have any idea what might be causing this, and what I can do to fix
it.

Glo