Re: Does someone knows what is this about?

[John R. Levine]

>There exists sites which do not have a nice block of IP addresses
>which describe all of their valid mail relay users.  For such sites,
>tarpitting is a much better solution than relay blocking.  MIT is one
>of them (many of its mail relay users are customers of random outside
>ISPs), 

The amount of spam I get from MIT tells me that whatever tarpitting
they think they're doing doesn't work.  Pop-before-SMTP and SMTP AUTH
both work and are widely implemented, as do various IP-in-IP tunnels.
It's sheer pigheadedness that makes MIT refuse to run mail systems the
way that responsible admins do.

Regards,
John Levine, [EMAIL PROTECTED], http://www.abuse.net, Trumansburg NY
abuse.net postmaster