Enum Qualifier 

pub enum Qualifier {
    Pass,
    Fail,
    SoftFail,
    Neutral,
}

The qualifier prefix of an SPF directive (RFC 7208, Section 4.6.2).

"+" pass
"-" fail
"~" softfail
"?" neutral

A directive without a qualifier defaults to Qualifier::Pass. When the mechanism matches, the qualifier becomes the SpfResult.

Variants

Pass

+: the client is authorized; maps to SpfResult::Pass.

Fail

-: the client is explicitly not authorized; maps to SpfResult::Fail.

SoftFail

~: the client is probably not authorized; maps to SpfResult::SoftFail.

Neutral

?: no assertion is made; maps to SpfResult::Neutral.

Trait Implementations

impl Clone for Qualifier

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 Qualifier

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

Formats the value using the given formatter.

impl Eq for Qualifier

impl From<&Qualifier> for SpfResult

fn from(q: &Qualifier) -> Self

Converts to this type from the input type.

impl PartialEq for Qualifier

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Qualifier