Michael Loftis wrote:
I publish them for some of my personal domains, however, I don't personally use SPF since I view it as fundamentally broken. We can't deploy them for (web hosting) customer records because of all of the various SMTP and SMTP Submit blocking we run into out there they (our customers) can't use our mail servers a lot of the time which means that an SPF record would basically amount to a +all or ?all which negates the whole reason.
If you only allowed SSL connections to your mail server with SMTP Auth, then what would be stopping your customers from using your mail servers? Particularly if you use POPS on 995 and SMTP on 465.
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