I'm seeing it for Yahoo!, Hotmail and Comcast so far. It is likely that these from recipients who use same-envelope forwarders to Yahoo, Hotmail and Comcast and I have an SPF record that prohibits that. All of these are from a new anti-forgery tool called DMARC - see http://dmarc.org. Andrew -----Original Message----- From: LISTSERV List Owners' Forum [mailto:[log in to unmask]] On Behalf Of Andrew Mace Sent: Tuesday, April 08, 2014 9:06 AM To: [log in to unmask] Subject: Re: Yahoo/Hotmail bulk error Ben, I suspect I'm not alone in hoping you will keep us posted as to progress in this area! Andrew Mace NYLINE Listowner New York State Library New York State Education Department >>> Ben Parker <[log in to unmask]> 04/08/2014 10:01 AM >>> In what is no doubt a well meant effort to combat spam, Yahoo.com has added a new form of email authentication that ignores the fact that email lists exist, and effectively prevents any yahoo.com email addresses (including related domains) from participating in email lists... ############################ To unsubscribe from the LSTOWN-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTOWN-L&A=1 ############################ To unsubscribe from the LSTOWN-L list: write to: mailto:[log in to unmask] or click the following link: http://peach.ease.lsoft.com/scripts/wa-PEACH.exe?SUBED1=LSTOWN-L&A=1