Am 09.07.2012 19:43, schrieb Robert Schetterer:
> strict spf has its problems with mail lists by breaking forward
> so this may rise your users support, but its good to have
> it in testing mode for income check at big mailers, also it helps little
> on backscatter

mailinglists are not the problem
envelope: owner-postfix-us...@postfix.org

the real problem are users which wants forwarding
to a foreign external address and are unable to
disable SPF checks there or misconfigured destinations
with SPF check on the final-destination while not exclude
their own filter-machine in front of

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