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DNS Myths & Misunderstandings

Busting the myths. This section debunks common misunderstandings, like "I can have multiple SPF records" (you cannot—it breaks SPF) or "I don't need an A record for my mail server" (you do). It's the 'true navigation' that separates a leaky hull from a tight ship.

10 questions in this topic

Is DNS setup “one and done”? Do SPF and DKIM work without proper DNS? Can TXT records be added in any order? Does DNSSEC automatically improve deliverability? Does flattening SPF always fix errors? Can you have multiple DMARC records? Does BIMI guarantee inbox placement? Do DNS propagation delays affect real-time sending? Is reverse DNS optional for bulk senders? Can Cloudflare break email DNS setups?