Suppressions and reputation guards

Parcel Wing protects tenants, domains, IPs, and recipients by blocking sends that are likely to harm deliverability or violate recipient preferences.

Why guards exist

Email providers reward consistent, wanted mail and punish risky sending. Parcel Wing checks usage limits, content policy, recipient suppressions, and sending reputation before handing a message to outbound infrastructure.

Suppressions

Suppressions prevent sends to recipients that should not receive a message. A suppressed send creates a suppressed message record and delivery event, then returns a conflict error to the caller instead of retrying.

Suppressions are intentional stops

Treat suppression responses as terminal for that recipient and message type. Retrying immediately usually makes things worse and may indicate your application is ignoring unsubscribe, bounce, or complaint feedback.

Reputation enforcement

Reputation enforcement evaluates the tenant, sending domain, selected mail node, selected IP, and message kind. If sending is paused or risky, Parcel Wing returns a reputation error before another message can damage reputation further.

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Reputation dashboard with guardrail state

Capture the Reputation page showing tenant, domain, IP, or mail-node health indicators and any pause/warning state that explains why sends are being blocked or slowed.

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How to respond

For suppressions, remove the recipient from the workflow or confirm that the suppression reason has been resolved. For reputation errors, inspect recent failed, bounced, complained, and suppressed events before resuming volume. Lower volume, improve targeting, and verify list quality before increasing send rates again.

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