Kee Hinckley <nazgul(_at_)somewhere(_dot_)com> wrote:
An alternative policy approach for sites implementing RMX lookups
would be to rate-limit non-RMX connections to some small amount of
bandwidth. Mail from non-RMX sites would still get through, but would
be punished relative to RMX aware sites.
What MTAs currently support rate-limiting?
I don't know. But there are lower layer rate limiters: QoS.
The solution to the spam problem will often require things outside
of the SMTP world. Bandwidth limitations on SMTP connections are just
one possibility.
Alan DeKok.
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