| Blackhole Lists |
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| Ø | Pros |
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| Ø | Blocks spam
from known confirmed sources, |
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| relays, or
improbable hosts |
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| Ø | Fast |
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| Ø | Can be used to
block before accepting |
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| message in smtp
session |
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| Ø | Cons |
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| Ø | Blocks all mail
from a site, not just spam |
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| Ø | Can’t be used
to block until spam has been |
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| sent/relayed
from that source and reported |
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| Ø | Easy to defeat
with spam & run |
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