SPF, DKIM, DMARC and BIMI — the DNS records that let a receiver trust who sent a message, and how to verify them before you ship.
2 articles
The record is published, the SVG validates, and Gmail still shows an initial instead of your logo. Here is every reason that happens, in the order to check them, with the commands to check each one.
What BIMI actually is, the DNS record and SVG it needs, why DMARC enforcement and a VMC come first, and how to verify the whole chain on a real message instead of trusting a checker.
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