Pablo Scheri wrote: [...]
The problem is that when I send mails to the postfix, for example 1000 mails, It routes 990 to one of the exchange (10.0.0.208) and 10 to the other one (10.0.0.207). I alter the order of the A records to see if it changes, but did not. In the maillog the only difference I see is that the "delay=x" value in the 10.0.0.207 server is a very high number (40) and for the 10.0.0.208 server is 0.18 aprox. Does anyone know whats going on with it?
If your DNS servers are running on Microsoft systems, you may be affected by their LocalNetPriority logic, which consider itself smarter than round robin DNS.
See http://support.microsoft.com/kb/177883 for details. -- Bjørn
