At 15:36 19-06-2009, McDonald, Dan wrote:
Of course. Don't you? Although usually the Nigerians relay through
Italy, and sometimes Hong Kong.
I don't see any email of that type originating from Nigeria in terms
of SMTP. Most of these emails originate from other
countries. Blocking Italy or Hong Kong won't help that much because
of the mode of operation of these senders.
One of the advantages of SpamAssassin is that it doesn't use one
specific rule to detect spam. If you rely on one specific rule only,
it will be subverted.
Regards,
-sm