Hi, thanks for the quick answerd, the DNS is a local Bind. the command : $ postconf smtp_randomize_addresses tells me "YES"
In the DNS Zone I define only one MX, and I set 2 A registries for that MX name. Thanks again! > Subject: Re: Problems with Postfix / Round-Robin > To: postfix-users@postfix.org > Date: Thu, 5 Feb 2009 14:27:49 -0500 > From: wie...@porcupine.org > > Wietse Venema: > [ Charset UNKNOWN-8BIT unsupported, converting... ] > > Bj_rn Ruberg: > > > 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. > > > > To prevent that problem, Postfix randomizes the order of DNS records > > that have equal preference. > > You may want to do > > $ postconf smtp_randomize_addresses > > to find out if some idiot maintainer has disabled this feature. > > Wietse _________________________________________________________________ ¿Quieres saber cómo va a estar el clima mañana? ¡Ingresa ahora a MSN! http://tiempo.cl.msn.com/
