Date Author Title
2021-08-25Jan KoprivaThere may be (many) more SPF records than we might expect
2020-05-27Jan KoprivaFrankenstein's phishing using Google Cloud Storage
2014-02-21Johannes UllrichUPS Malware Spam Using Fake SPF Headers
2014-01-24Johannes UllrichHow to send mass e-mail the right way
2010-06-01Mark HofmanSPF how useful is it?