One concrete example: AS16276 has 3583744 IPs. Out of these, 2327 sent
a spam in the last 7 days according to uceprotect. That might seem
like a high number, but it's only 0.05% of the address space of that
AS. Because of this all IPs of AS16276 are blacklisted.
2327 IPs from that ASN sent spam in 7 days, and you are hear arguing
that is OK?!?
2327 out of 3583744. Are you saying that only 0% is okay? We do not live
in a perfect world, errors happen, that's unavoidable.
The a few things that make those 4 providers good are 1) They act on
abuse reports, 2) they block outbound port 25 by default, and 3) they
require real ID.
As I said, none of these things are enough. You can act on abuse reports,
block outbound port 25, and require real ids, and yet see honest customers
being hacked.
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