For the past several weeks our University filter software has been malfunctioning; blocking legitimate messages, letting spam through. The U finally terminated it. But the problem for me is that I have already been alerted that messages from sellers on eBay (using the eBay notice service) have not gotten through to me. Ultimately, I have received notices. So if anyone has tried to correspond with me by e-mail and had the post returned, try again, as the problem has been solved by eliminating the filter software.