Deep dives into email infrastructure, deliverability, and the future of communication technology
DANE posted its fastest month yet, and 85% of it was one German host flipping a switch. Plus a new measurement: we asked 290,000 mail servers whether they actually refuse unencrypted mail. Two in a thousand do.
Month two, and the first set of deltas. Every protocol grew except DANE — and the entire decline traces to one Swiss host deleting the TLSA records for its whole customer fleet.
Our first monthly reading of DMARC, BIMI, DANE and MTA-STS across the top million domains. DMARC sits at 64% of mail-eligible domains; the other three are all under 5% — and no single provider ships all four.
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