Spammers are getting smarter, even with spoofing, as they are using throw-away domains and publishing legit SPF/DKIM authentication. FYI. Yahoo.com does not publish an SPF record.
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Spammers are getting smarter, even with spoofing, as they are using throw-away domains and publishing legit SPF/DKIM authentication. FYI. Yahoo.com does not publish an SPF record.