Enum Delivered 

#[non_exhaustive]
pub enum Delivered {
    Queued,
    Yes,
    No,
    Unknown,
    Other(String),
}

Delivery status of a message to a recipient (RFC 8621 §7, delivered field).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Queued

The message is in a local mail queue and the status is not yet known.

Yes

The message was successfully delivered to the mail store of the recipient.

No

Delivery failed; the smtp_reply field contains the failure reason.

Unknown

The final delivery status is unknown.

Other(String)

An unrecognised value was received from the server.

The inner string retains the original value so this variant round-trips correctly.

Implementations

impl Delivered

pub fn as_str(&self) -> &str

The wire string for this value: the listed string for a known variant, the stored string for Other.

Trait Implementations

impl Clone for Delivered

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Delivered

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Delivered

fn deserialize<D: Deserializer<'de>>(d: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for Delivered

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

Formats the value using the given formatter.

impl Eq for Delivered

impl From<&str> for Delivered

fn from(v: &str) -> Self

Converts to this type from the input type.

impl From<String> for Delivered

fn from(v: String) -> Self

Converts to this type from the input type.

impl Hash for Delivered

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Delivered

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Delivered

fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Delivered