One queued synthetic notification delivered by a scheduled worker

What was measured

One controlled queued-delivery observation, separate from the immediate browser-submission path, with before-and-after outbox state and independent owner-inbox confirmation.

Instrument: Scheduled-worker outbox receipts and owner-inbox receipt

Recorded findings

1. One notification queued for a labelled synthetic website enquiry was marked sent on its first recorded delivery attempt by the scheduled worker, with no recorded delivery error; a matching receipt was observed in the configured owner's inbox.

   n=1; 2026-10-03 to 2026-10-03; method: Verified the synthetic outbox job was pending with zero attempts, allowed the existing schedule to process it, then matched its sent state and message identifier to the owner-inbox receipt. No genuine enquiry records were changed.; recorded value: 1 queued synthetic notification

Limits and privacy

• One successful queued notification is not a delivery-rate, latency or uptime estimate.
• No live mail-provider failure was induced; this observation does not prove retries after provider failure.
• The observation does not establish exactly-once delivery, recovery from ambiguous acknowledgement, or every duplicate and error path.
• No real customer data was used.

Anonymisation: Message contents, addresses, job identifiers, inbox identifiers, private service names and operating details are excluded.

This record is primary evidence from Hallermann Consulting. Its findings should not be extrapolated beyond the stated sample, period and method.