Delivery error¶

Delivery Error¶

Error Type¶

Type of delivery error encountered.

One of: DNS resolution failed (dnsError), Remote server returned an unexpected SMTP response (unexpectedResponse), Failed to establish connection to remote server (connectionError), TLS handshake or encryption failed (tlsError), DANE validation failed (daneError), MTA-STS policy validation failed (mtaStsError), Delivery delayed due to rate limiting (rateLimited), Delivery delayed due to connection limits (concurrencyLimited), Network I/O error occurred (io). Name in the API: errorType.

Error Message¶

Detailed error message.

Text. Name in the API: errorMessage.

SMTP Command¶

SMTP command that triggered an unexpected response.

Text. Name in the API: errorCommand.

Server Response¶

Hostname¶

Hostname of the remote server that responded.

Text. Name in the API: responseHostname.

Response Code¶

SMTP response code from the remote server.

A number. Name in the API: responseCode.

Enhanced Code¶

SMTP enhanced status code (e.g., "4.7.1")

Text. Name in the API: responseEnhanced.

Message¶

SMTP response message from the remote server.

Text. Name in the API: responseMessage.