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Check your SPF records: Wide IP ranges undo email security and make for tasty phishes

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简介Image: Can I Phish/Sebastian SallaYou've done the right thing by your organisation and made sure tha...

Image: Can I Phish/Sebastian Salla

You've done the right thing by your organisation and made sure that DMARC and SPF (sender policy framework) records are set in an effort to reduce email spoofing, but all that good work could be undone if the SPF is too permissive in the stated IP range.

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Such a situation was pointed out by Can I Phish CEO Sebastian Salla who scanned 1.8 million Australian domain records in search of email security snafus.

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