Struct SmtpOutboundConfig 

pub struct SmtpOutboundConfig {
    pub idle_timeout_secs: u64,
    pub per_remote_cap: usize,
    pub global_cap: usize,
}

Configuration for outbound SMTP connection pooling.

Controls the pool of reusable outbound SMTP connections maintained by OutboundPool. Defaults are intentionally conservative; tune for your deployment’s message volume.

TOML example

[smtp.outbound]
idle_timeout_secs = 30
per_remote_cap    = 8
global_cap        = 256

Fields

idle_timeout_secs: u64

Default: 30. Seconds a connection may sit idle before the background reaper closes it.

per_remote_cap: usize

Default: 8. Maximum pooled connections to a single remote address.

global_cap: usize

Default: 256. Total pooled connections across all remote addresses.

Trait Implementations

impl Clone for SmtpOutboundConfig

fn clone(&self) -> SmtpOutboundConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SmtpOutboundConfig

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

Formats the value using the given formatter.

impl Default for SmtpOutboundConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SmtpOutboundConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for SmtpOutboundConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.