At 11:14 PM 10/20/2001 -0400, you wrote: >There is a RBL-like blacklist service for sites that reject null >envelopes: > > http://www.rfc-ignorant.org/policy-dsn.html
Again, that's nice IF what you value is the purity of the Internet. If what you value is the ability to provide the service they need to a community, better ways to block mail just doesn't cut it.
