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It was from a Google email address with SPF+DMARC, to a Fastmail address, which enforces them. Additionally, I emailed some of the other recipients on the spam,
by throw10920 4y ago
It was from a Google email address with SPF+DMARC, to a Fastmail address, which enforces them. Additionally, I emailed some of the other recipients on the spam, and got autoresponders + real people, and no bounces - so they're not guessing.