Tony Finch wrote:
On Wed, 25 Feb 2009, Suresh Ramasubramanian wrote:
Christ .. Yahoo did say "complaints". And it can take a very low level of complaints before a block goes into place - especially for low volume (corporate etc) mailservers.
I don't think this is Yahoo reacting to spam complaints because a large number of sites (many universities, for instance) are being affected by this problem at the same time.
Universities are often major sources of spam. Spam is sent directly from virus-infected student computers, and spam is also sent to students at their university email address and then .forwarded on to the student's outside (or post-university) email account - when the student receives forwarded spam at their Yahoo account and clicks "this is spam" the university is considered the "source" of the spam. jc