Mail Domain Check
Wallet login · 2FA · transaction email
Verification email incident triage
Identify the first unproven delivery boundary and produce a safe evidence and retry plan without entering an address, code, token, message, or provider credential.
OBSERVED STATE
Incident evidence
RESPONSE PLAN
Likely boundary
The result will separate application generation, provider processing, SMTP delivery, and receiver visibility without treating a retry as proof.
Additional checks
Evidence packet
Delivery model
One message, four evidence boundaries
Event, queue job, template, normalized recipient, idempotency, region, and provider request.
Processed, dropped, suppressed, deferred, bounced, or delivered event with timestamps.
Complete three-digit reply, enhanced status, receiving domain, outbound IP, and attempt.
Acceptance, quarantine, rules, aliases, message trace, original header, and trusted results.
A provider delivered event proves receiving-server acceptance, not inbox placement. Authentication can remove a rejection cause but cannot guarantee visibility.