Per Jessen wrote:
Since such ranges are usually not as trustworthy as /32s of
well-respected mailserver operators, dnswl.org lists such ranges with
a score of none; for all practical reasons, this should translate
into do not greylist, since there is most likely a legitimate
mailserver at
Matthias Leisi wrote:
194.67.23.0/24 does not equal the full set of *.mail.ru hostnames.
Similarly, dnswl.org contains three /24s for uol.com.br (see
http://www.dnswl.org/search.pl?s=3633). Now this is not a statement
that uol.com.br is all nice and cosy, but it's a statement of the fact
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