procmail and duplicate mail

[Derek Martin]

Anyone have a simple procmail recipie for eliminating duplicate mail?

Thanks

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PGP/GPG Public key at http://cerberus.ne.mediaone.net/~derek/pubkey.txt

Derek D. Martin      |  Senior UNIX Systems/Network Administrator
Arris Interactive    |  A Nortel Company
derekm at mediaone.net  |  dmartin at ne.arris-i.com
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