3 people reported

All time, since Aug 26, including 1 thumbs-up on GitHub.

ENOTFOUND for split-DNS names

Hostnames served only by a supplemental or scoped resolver, as from VPNs, Tailscale MagicDNS or /etc/resolver drop-ins, fail.

Is this your bug? What gets counted gets fixed. Pile on.

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I hit this bug: rapsheet.dev/sheets/bun/issues/4800/file
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No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

DNS lookup returns ENOTFOUND for split-DNS names on macOS.

Is this your bug?

Where: dns.lookup
Versions: 1.4.0 to 1.4.2
Platforms: macOS
How bad: Breaks a normal workflow.

Original reports2, newest first

Sep 26, 2026macOS: dns.lookup/fetch ENOTFOUND for split-DNS names — DNSServiceGetAddrInfoEx ignores kDNSServiceAttrAllowFailover (follow-up to #40573)#44075
Aug 26, 2026dns.lookup() returns ENOTFOUND for hostnames served by a macOS supplemental/scoped resolver (regression 1.3.14 → 1.4.0; fetch() unaffected)#40573

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