Enum Extension

#[non_exhaustive]
pub enum Extension {
    EightBitMime,
    SmtpUtfEight,
    StartTls,
    Authentication(Mechanism),
}

Supported ESMTP keywords

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.

EightBitMime

8BITMIME keyword

Defined in RFC 6152

SmtpUtfEight

SMTPUTF8 keyword

Defined in RFC 6531

StartTls

STARTTLS keyword

Defined in RFC 2487

Authentication(Mechanism)

AUTH mechanism

Trait Implementations

impl Clone for Extension

fn clone(&self) -> Extension

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Extension

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

Formats the value using the given formatter.

impl Display for Extension

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

Formats the value using the given formatter.

impl Hash for Extension

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 Extension

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Extension

impl Eq for Extension

impl StructuralPartialEq for Extension