On Sat, 20 May 2017, frnk...@iname.com wrote:
Are you saying that checking the box on our commercial spam filtering system’s “check SPF” feature, which quarantines messages that have SPF failures (-all), was a poor decision on my part?
If it does that on a simple SPF failure with no other indication that a message is spam, yes.* I expect that's the sort of thing Neil was referring to when he mentioned firing offenses.
I don’t understand what DMARC has to do with this – a sender who implements an SPF record should not the assume the receiver has also implemented DMARC checking.
Now I must say that I am really, really glad that I am not one of your mail users. Just for starters, why do you think that DMARC checks both SPF and DKIM and applies the policy only if they both fail?
R's, John* - disregarding the special case of an SPF record that contains only -all, meaning that a domain sends no mail at all. But I don't think that's what we're talking about here.
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