On Wed, 17 Nov 2004, Theo Van Dinter wrote:

> - from jm: network test, do dnsbl lookups on the helo hostname

You should also apply the URIBL technique of checking the nameservers of
various domains against the SBL. "Various domains" would include the helo
name and return path address. You could also look up the corresponding
MXs. Postfix supports these kinds of checks.

Tony.
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