Mail on the DNS side: SPF, DKIM, DMARC, MTA-STS and TLS-RPT without errors

55 min Debian 12 Versions BIND 9.16+, toute zone DNS

Objective

Publish in the masterlinux.lab zone everything that mail servers around the world check before accepting an email from you, and fix the errors that send the MasterLinux shop's invoices to the spam folder.

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