Impossible to deliver e-mails to Yahoo Groups
It's seem now impossible to send emails to mailing list Yahoo Groups.
Your email was not delivered due to a suspected guidelines violation. Please visit http://groups.yahoo.com/local/guidelines.html
If you feel you've gotten this email in error please visit the following link for more information http://help.yahoo.com/kb/index?locale=enUS&page=content&y=PRODACCT&id=SLN3263