use-email-id

Message identity and threading primitives for RustUse.

Experimental

use-email-id is experimental while use-email remains below 0.3.0.

Example

use use_email_id::{InReplyTo, MessageId, References};

let root: MessageId = "<root@example.com>".parse()?;
let reply: MessageId = "reply@example.com".parse()?;
let references = References::new().with_message_id(root.clone()).with_message_id(reply.clone());
let in_reply_to = InReplyTo::new(root);

assert_eq!(reply.to_string(), "<reply@example.com>");
assert_eq!(references.len(), 2);
assert!(in_reply_to.to_string().contains("root@example.com"));
# Ok::<(), use_email_id::MessageIdError>(())

Scope

• Message-ID local/domain wrappers and angle-bracket formatting.
• References, In-Reply-To, and thread reference containers.
• Conservative validation for typed identity strings.

Non-goals

• Message store or mailbox threading algorithms.
• Global uniqueness guarantees.
• Complete RFC parser behavior.

License

Licensed under either Apache-2.0 or MIT.