Date: 06/23/05 (Security)    Keywords: technology, spam, microsoft

MSN and Hotmail will flag e-mail without a Sender ID tag, a move critics see as Microsoft forcing its antispam technology onto the world.

Source: http://news.zdnet.com/Microsoft+pushes+spam-filtering+technology/2100-1009_22-5758365.html?part=rss&tag=feed&subj=zdnn