HEADERS
What authentication reports are actually telling you
We spend our days inside XML reports nobody reads. What we learn there is worth more here than in our database: this is what we have worked out, explained in full, with nothing held back for the paid version.
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Service providers
DMARC for service providers: scope it, price it, deliver it
Your clients are starting to ask about DMARC. Here is how to structure the engagement in three tiers, what each one costs in hours, and how to avoid deploying for free.
10 min read
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Deploying DMARC
Moving to reject without blocking your own email
The pct tag has just been removed by the new DMARC standard. Here are the four conditions to meet before tightening, and a ninety-day rollout plan.
12 min read
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Email governance
Who sends email on your behalf?
A small company has between five and twenty tools writing in its name, and knows about three of them. Here is why that list exists nowhere, and how to rebuild it.
8 min read
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Understanding DMARC
SPF valid, DMARC failing: the alignment misunderstanding
Your SPF record is correct, and your DMARC reports still show failures. The explanation comes down to one word, alignment, and here is how it works.
9 min read
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Understanding DMARC
Reading a DMARC aggregate report, line by line
A real DMARC report decoded in full, block by block, including the reading trap that skews half the statistics people take away from them.
11 min read