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DNS Records Overview — The Definitive Beginner Guide

Complete reference to all fundamental DNS record types (A, AAAA, CNAME, MX, TXT, NS, SOA, SRV, CAA, PTR), zone syntax, and inspection commands.

MX Records and Email Deliverability — The SPF, DKIM, and DMARC Trinity

Complete beginner guide to routing incoming email with MX records and achieving 100% inbox delivery using SPF, DKIM, and DMARC authentication.