Sender Policy Framework (SPF) is an email authentication method used for detecting forged sender addresses in emails. Essentially, it’s part of the security toolkit used to counter forged visible email addresses, or email spoofing, which is one way how spammers and phishers try to trick you. Reading up on it, I decided to check how many high-profile business law firms in Finland currently use SPF for their email domains. Turns out, many don’t. You can read about that further below.
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