That is not much different than whitelisting, right? I still have to
maintain a list of permitted networks, do I not?
On Oct 27, 2009, at 1:24 PM, Victor Duchovni wrote:
On Tue, Oct 27, 2009 at 01:14:05PM -0400, Dennis Putnam wrote:
Thanks or the reply. That sucks. Is there a way around this, short of
turning that off or whitelisting?
Don't use "reject_unknown_client" uncondionally. Use it selectively
in a
check_client_access cidr:/etc/postfix/client_access.cidr
rule that subjects "high-value" CIDR blocks (lots of junk with no
reverse mappings in a block, with some legit clients "mixed-in"
whose PTRs are valid), for example:
192.0.2.0/24 reject_unknown_client
--
Viktor.
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Dennis Putnam
Sr. IT Systems Administrator
AIM Systems, Inc.
11675 Rainwater Dr., Suite 200
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