E-MAILBOX PROVIDERS blocked 19.2% of all permission-based commercial e-mail during the first half of 2006, according to a study by e-mail delivery firm Return Path.
This average is a slight improvement over the 21% reported in the second half last year, the firm noted.
Non-delivery rates hit an average of 15% in 2002 and peaked in 2004 at an average 22%, Return Path continued. Internet service providers use spam complaints as the No. 1 factor in determining whether to block incoming mail from a specific sender.
Why the improvement this year?
Network
