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Clear filters ✕DMARC aggregate reports arrive as unreadable XML. Here is what every line means, why SPF can pass and still fail DMARC, and what to do with each sender you find.
Nine reasons your emails land in spam, in the order we usually find them, with a two-minute way to test yours and the exact fix for each.
The Gmail, Yahoo and Outlook.com rules side by side: who counts as a bulk sender, what SPF, DKIM, DMARC and unsubscribe setup you need, and what happens if you miss them.
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