/**
 * Canonical outcome and reason-code constants for the email-ingestion module.
 *
 * These are the authoritative definitions on the server side. The gateway
 * package holds an independent duplicate — no runtime import between them.
 */
export declare const IngestOutcome: {
    readonly INSERTED: "inserted";
    readonly DUPLICATE: "duplicate";
    readonly QUARANTINED: "quarantined";
    readonly REJECTED: "rejected";
};
export type IngestOutcome = (typeof IngestOutcome)[keyof typeof IngestOutcome];
export declare const IngestReasonCode: {
    readonly UNKNOWN_ALIAS: "UNKNOWN_ALIAS";
    readonly INVALID_AUTH: "INVALID_AUTH";
    readonly REPLAY_DETECTED: "REPLAY_DETECTED";
    readonly GRANT_INVALID: "GRANT_INVALID";
    readonly TENANT_MISMATCH: "TENANT_MISMATCH";
    readonly NO_DOCUMENTS: "NO_DOCUMENTS";
    readonly PARSE_ERROR: "PARSE_ERROR";
    readonly OVERSIZE_MESSAGE: "OVERSIZE_MESSAGE";
    readonly TIMEOUT: "TIMEOUT";
    readonly TRANSIENT_UPSTREAM: "TRANSIENT_UPSTREAM";
};
export type IngestReasonCode = (typeof IngestReasonCode)[keyof typeof IngestReasonCode];