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Deliverability guides that turn “spam” into action items
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How to read Gmail Authentication-Results (SPF, DKIM, DMARC)
A practical way to find SPF/DKIM/DMARC PASS/FAIL from one real email and what to do next.
2026-02-22
•
6 min
deliverability
gmail
spf
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SPF common mistakes: multiple records, include, and the 10-lookup limit
Why SPF fails even when you “have an SPF record”, and the fastest way to fix it.
2026-02-22
•
7 min
deliverability
spf
dns
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DMARC: from p=none to quarantine/reject (without breaking mail)
A safe rollout path for DMARC policies and what alignment means in real life.
2026-02-22
•
8 min
deliverability
dmarc
dns
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