Am 14.02.2013 20:31, schrieb Kevin Blackwell: > I'm using postfix to relay email to our exchange server. > > The problem I'm running into is the spam filtering on the exchange filter is > being bypassed because the relayed > email shows a from address of the email relay server and not the originating > ip address. > > Is there a was to configure postfix to relay male but retain the received > from IP address when it was received by > postfix?
wrong setup the spamfilter has to be on the MX directly in front of both machines and especially in front of exchange what do you imagine happens if spam would be caught on the exchange? well, it jectes while postfix in front of it has received it now you have two choices and btoh are completly wrong: * get a backscatter * drop messages which you accepted with 250 silently which is not permitted per law
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