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I checked 8,062 Show HN domains: 223 send with Resend and have no MX record

IT·技术 · 2026-10-20 13:19

A batch check of 8,062 Show HN domains found 223 that send email via Resend but have no MX record. The author explains MX lookup tools and how mail delivery falls back to the A record when no MX exists.

Source: mailyond.com

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