Struct mail::headers::MessageId

pub struct MessageId;

(rfc5322)

Trait Implementations

impl Clone for MessageId

fn clone(&self) -> MessageId

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for MessageId

fn default() -> MessageId

Returns the “default value” for a type.

impl HeaderKind for MessageId

type Component = MessageId

the component representing the header-field, e.g. Unstructured for Subject

fn name() -> HeaderName

a method returning the header name

const MAX_ONE: bool = true

I true this will assure that the header is at most one time in a header map.

const VALIDATOR: Option<fn(_: &HeaderMap) -> Result<(), HeaderValidationError>> = { None }

A function which is meant to be called with a reference to the final header map before encoding the headers. It is meant to be used do some of the contextual validations, like e.g. a From header might return a function which checks if the From header has multiple mailboxes and if so checks if there is a Sender header

fn auto_body<H>(body: H) -> Result<Header<Self>, ComponentCreationError>where
    H: HeaderTryInto<Self::Component>,

Creates a Header instance automatically converting given body to the right type.

fn body(body: Self::Component) -> Header<Self>

Creates a Header instance for this header kind with given body.

impl Copy for MessageId

impl MaxOneMarker for MessageId