On 3/27/2013 7:30 AM, Lima Union wrote:

> Wietse, there's something I don't understand. I've commented out the
> check_reverse_client_hostname_access, 

Re-enable it.

> reloaded postfix and am still
> finding those DNS warnings (ie: hostname
> 77-121-229-206.dhcp.kram-city.net verification failed: Name or service
> not known). 

These warnings are not related to the fqrdns table.  As Wietse explained
they are DNS server errors.  I get many dozens of these warnings per
day, every day.  So does everyone else.

-- 
Stan

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