gosmtp

const (
	// ClassSuccess specifies that the DSN is reporting a positive delivery
	// action.  Detail sub-codes may provide notification of
	// transformations required for delivery.
	ClassSuccess = 2
	// ClassTransientFailure - a persistent transient failure is one in which the message as
	// sent is valid, but persistence of some temporary condition has
	// caused abandonment or delay of attempts to send the message.
	// If this code accompanies a delivery failure report, sending in
	// the future may be successful.
	ClassTransientFailure = 4
	// ClassPermanentFailure - a permanent failure is one which is not likely to be resolved
	// by resending the message in the current form.  Some change to
	// the message or the destination must be made for successful
	// delivery.
	ClassPermanentFailure = 5
)

const (
	// SubjectUndefined - There is no additional subject information available
	SubjectUndefined = 0
	// SubjectAddressing - The address status reports on the originator or destination address.
	// It may include address syntax or validity.
	// These errors can generally be corrected by the sender and retried.
	SubjectAddressing = 1
	// SubjectMailbox - Mailbox status indicates that something having to do with the mailbox has caused this DSN.
	// Mailbox issues are assumed to be under the general control of the recipient.
	SubjectMailbox = 2
	// SubjectMail - Mail system status indicates that something having to do with the destination system has caused this DSN.
	// System issues are assumed to be under the general control of the destination system administrator.
	SubjectMail = 3
	// SubjectNetwork - The networking or routing codes report status about the delivery system itself.
	// These system components include any necessary infrastructure such as directory and routing services.
	// Network issues are assumed to be under the control of the destination or intermediate system administrator.
	SubjectNetwork = 4
	// SubjectDelivery - The mail delivery protocol status codes report failures involving the message delivery protocol.
	// These failures include the full range of problems resulting from implementation errors or an unreliable connection.
	SubjectDelivery = 5
	// SubjectContent - The message content or media status codes report failures involving the content of the message.
	// These codes report failures due to translation, transcoding, or otherwise unsupported message media.
	// Message content or media issues are under the control of both the sender and the receiver,
	// both of which must support a common set of supported content-types.
	SubjectContent = 6
	// SubjectPolicy - The security or policy status codes report failures involving policies such as per-recipient or
	// per-host filtering and cryptographic operations.
	// Security and policy status issues are assumed to be under the control of either or both the sender and recipient.
	// Both the sender and recipient must permit the exchange of messages and arrange the exchange of necessary keys and
	// certificates for cryptographic operations.
	SubjectPolicy = 7
)

const (
	OtherStatus                               = ".0.0"
	OtherAddressStatus                        = ".1.0"
	BadDestinationMailboxAddress              = ".1.1"
	BadDestinationSystemAddress               = ".1.2"
	BadDestinationMailboxAddressSyntax        = ".1.3"
	DestinationMailboxAddressAmbiguous        = ".1.4"
	DestinationMailboxAddressValid            = ".1.5"
	MailboxHasMoved                           = ".1.6"
	BadSendersMailboxAddressSyntax            = ".1.7"
	BadSendersSystemAddress                   = ".1.8"
	OtherOrUndefinedMailboxStatus             = ".2.0"
	MailboxDisabled                           = ".2.1"
	MailboxFull                               = ".2.2"
	MessageLengthExceedsAdministrativeLimit   = ".2.3"
	MailingListExpansionProblem               = ".2.4"
	OtherOrUndefinedMailSystemStatus          = ".3.0"
	MailSystemFull                            = ".3.1"
	SystemNotAcceptingNetworkMessages         = ".3.2"
	SystemNotCapableOfSelectedFeatures        = ".3.3"
	MessageTooBigForSystem                    = ".3.4"
	OtherOrUndefinedNetworkOrRoutingStatus    = ".4.0"
	NoAnswerFromHost                          = ".4.1"
	BadConnection                             = ".4.2"
	RoutingServerFailure                      = ".4.3"
	UnableToRoute                             = ".4.4"
	NetworkCongestion                         = ".4.5"
	RoutingLoopDetected                       = ".4.6"
	DeliveryTimeExpired                       = ".4.7"
	OtherOrUndefinedProtocolStatus            = ".5.0"
	InvalidCommand                            = ".5.1"
	SyntaxError                               = ".5.2"
	TooManyRecipients                         = ".5.3"
	InvalidCommandArguments                   = ".5.4"
	WrongProtocolVersion                      = ".5.5"
	OtherOrUndefinedMediaError                = ".6.0"
	MediaNotSupported                         = ".6.1"
	ConversionRequiredAndProhibited           = ".6.2"
	ConversionRequiredButNotSupported         = ".6.3"
	ConversionWithLossPerformed               = ".6.4"
	ConversionFailed                          = ".6.5"
	SecurityStatus                            = ".7.0"
	DeliveryNotAuthorized                     = ".7.1"
	MailingListExpansionProhibited            = ".7.2"
	SecurityConversionRequiredButNotSupported = ".7.3"
	EncryptionNeeded                          = ".7.10"
)