Struct MessageIdTransformer 

pub struct MessageIdTransformer { /* private fields */ }

Transformer that ensures every email has a Message-ID MIME header.

If the body already contains a Message-ID header, the struct’s EmailMessage::message_id field is updated to match it. Otherwise, a new header is prepended using the existing EmailMessage::message_id and the configured domain.

Implementations

impl MessageIdTransformer

pub fn new(domain: String) -> Self

Creates a new MessageIdTransformer with the given domain for generated IDs.

Trait Implementations

impl MessageTransformer for MessageIdTransformer

fn transform<'a>(&'a self, message: &'a mut EmailMessage) -> TransformFuture<'a>

Transforms an email message in place, possibly performing async operations.

fn name(&self) -> &str

Returns the name of this transformer.

fn apply<'a>( transformers: &'a [Box<dyn MessageTransformer>], message: &'a mut EmailMessage, ) -> TransformFuture<'a>

where Self: Sized,

Applies a list of transformers to a message in order.