[address-policy-wg] "Dirty" recycled network assigned

* Wilfried Woeber:

>> You also need to rewrite Received: lines, to remove records of the
>> supposedly infected address space.  And you should do this on a separate
>> server on a dedicated prefix, so that misguided blacklist operators do
>> not retaliate against your main mail service for doing that. 8-(
>
> I really don't get that one :-)

Which part?

For certain mail relays, filter rules are applied to hosts behind it,
not to the relay itself.

> I suppose the NCC manufactures a completely fresh and shiny
> address space object when giving out "previously used" address
> space?

They do.  But blacklist operators do not seem to care.  (Same for some
routing database operators, BTW.)

Apparently, it's also possible to wipe clean the record on your inetnum:
objects, so it's understandable that the blacklist operators do not
automatically wipe all the records from their databases just because the
object appears to be new.