ISmtpSendRequestEnvelopeId Property

Get or set the envelope identifier to be used with delivery status notifications.

Definition

Namespace: MailKit.Net.Smtp
Assembly: MailKit (in MailKit.dll) Version: 5.0.0
C#
string? EnvelopeId { get; set; }

Property Value

String
The envelope identifier.

Remarks

The envelope identifier, if non-empty, is useful in determining which message a delivery status notification was issued for.

The envelope identifier should be unique and may be up to 100 characters in length, but must consist only of printable ASCII characters and no white space.

This value is only used if the SMTP server supports the Dsn extension.

For more information, see rfc3461, section 4.4.

See Also