Blockers — what must exist before a single email can be drafted to a real inbox
Agent inbox
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Hunter (recipient discovery)
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SPF / DKIM / DMARC — resolved live at request time
Resolver:
dns.google DoH (no dig/nslookup binary exists on this host).
These are web hosts, not sending domains — a missing record here is expected and says nothing
about a mail posture. With no sending domain chosen, real deliverability is UNKNOWN, not "failing".
BOUNCE STOP
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Drafts
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