From: Andrea S. Gozzi (as.gozzivp44.net)
Date: Fri Sep 14 2007 - 03:44:58 CDT

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Hi.
I'm running a small postfix server (virtual users on mysql) for a 6-7
domains, a couple MLs and about 40 mailboxes.
I've implemented RBL checks in postfix but most of the spam is sent to
invalid email addresses, so I was wondering if it was possible to have
the validity address check performed before RBLs.
I know purpose of RBL is to prevent mail from even entering postfix but
if I run checks with SA I'm afraid it would take longer (and more system
resources - I'm tight on that).
Thank you,

Andrea

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