SpamAssasin and SMTP (Postfix)

[Redhat Mail For You]

Is it possible to filter emails through SpamAssasin even if the email is going straight through the server onto another mail server?

Regards,

Phil
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No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.7.0 - Release Date: 1/17/2005
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