Enum DiscardEvent 

pub enum DiscardEvent {
    MessageDiscard {
        base: BaseEvent,
        queue_id: String,
        recipient: String,
        relay: String,
        delay: f64,
        delays: DelayBreakdown,
        dsn: String,
        status: String,
        discard_reason: String,
    },
    Configuration {
        base: BaseEvent,
        config_type: DiscardConfigType,
        details: String,
    },
}

DISCARD组件事件类型 基于Postfix源码和真实生产数据分析 DISCARD是“假装投递“的邮件丢弃代理，不进行实际网络投递

Variants

MessageDiscard

邮件丢弃事件 - DISCARD的主要功能，假装投递但实际丢弃

Fields

base: BaseEvent

queue_id: String

recipient: String

relay: String

DISCARD总是为“none“，表示无实际中继

delay: f64

处理延迟时间（秒）

delays: DelayBreakdown

延迟时间细分 (queue/conn_setup/conn/transmission)

dsn: String

DSN状态码，通常为2.0.0表示“成功丢弃“

status: String

投递状态，DISCARD总是报告为“sent“

discard_reason: String

丢弃原因，通常是下一跳目的地或配置的原因

Configuration

配置事件 - DISCARD代理的配置相关事件

Fields

base: BaseEvent

config_type: DiscardConfigType

details: String

Implementations

impl DiscardEvent

pub fn queue_id(&self) -> Option<&str>

获取队列ID（如果存在）

pub fn recipient(&self) -> Option<&str>

获取收件人地址（如果存在）

pub fn discard_reason(&self) -> Option<&str>

获取丢弃原因

pub fn is_message_discard(&self) -> bool

判断是否为邮件丢弃事件

pub fn severity(&self) -> &'static str

获取事件严重性级别

pub fn is_successful_discard(&self) -> bool

检查是否为成功的丢弃操作

Trait Implementations

impl Clone for DiscardEvent

fn clone(&self) -> DiscardEvent

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DiscardEvent

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DiscardEvent

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for DiscardEvent

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.