Am 04.02.2011 16:32, schrieb [email protected]: > So you have a local caching-resolver on the Postfix box? > > If so it should not fail because of traffic as long as your system resources > are not exhausted. > If your system resources are exhausted using a different resolver does not > help. > > You might playing tricks with a local caching-resolver used by internal > clients and > pointing /etc/resolv.conf to > some second (external) resolver but i doubt this is your problem at all
Even if dns-load would be the problem (which is not, it is mysql seen some posts before) the real problem should be searched because nohting is better for a dns.cache as a mailserver to get the cache filled But i never seen any machine where dns-lookups where a load problem
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