Message lifecycle
Every send creates a message record and a sequence of delivery events. The lifecycle helps you separate “Parcel Wing accepted the request” from “a mailbox provider accepted or rejected the message.”
Lifecycle overview
A normal transactional send starts as queued, moves to processing while Parcel Wing is attempting mail-node delivery, and becomes sent when the mail node accepts the message for outbound delivery. Later provider feedback can add delivery, bounce, complaint, open, click, or suppression events.
queued
The request passed validation and a message record exists.
processing
Parcel Wing is attempting to hand the message to a mail node.
sent
The selected mail node accepted the message for outbound delivery.
failed
The send attempt failed before a successful mail-node handoff.
suppressed
Parcel Wing refused the send because the recipient is suppressed.
bounced
A receiving server later rejected the message.
Queued and processing
Queued means Parcel Wing accepted the request and stored a message. Processing means a mail node has been selected and an attempt is in progress. If a mail node has an infrastructure failure, Parcel Wing can mark that node unhealthy and try another eligible node before failing the message.
Sent vs delivered
Sent means Parcel Wing handed the message to outbound mail infrastructure successfully. Delivered means a receiving mailbox provider later accepted the message. A message can be sent and then later bounce, complain, or produce engagement events.
Do not treat sent as inbox placement
Events and webhooks
Parcel Wing records delivery events and emits webhook events such as email.queued, email.sent, and email.failed. Use the dashboard for troubleshooting and webhooks for application workflows that need to react to lifecycle changes.
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Delivery events timeline and webhook payload context
Capture a message detail page showing queued, sent, and failed or delivered events, plus any SMTP code, provider message ID, or webhook-related context visible in the UI.