Am 06.10.2012 22:37, schrieb Titanus Eramius: > * Is there any advantage in using "v=spf1 ip4:1.2.3.4 -all" compared > to "v=spf1 mx -all" or the other way around?
"v=spf1 mx -all" enforces a additional dns-request while "v=spf1 ip4:1.2.3.4 -all" does not
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