Enum Strictness 

pub enum Strictness {
    Strict,
    Standard,
    Lax,
}

How strictly to validate RFC grammar.

Variants

Strict

RFC 5321 envelope: dot-atom only, no comments, no quoted strings, no obs-*. Rejects technically valid but practically useless addresses.

Standard

RFC 5322 header: full grammar including quoted strings, comments, CFWS. This is the correct conformant mode.

Lax

Standard + obs-local-part, obs-domain for legacy compatibility.

Trait Implementations

impl Clone for Strictness

fn clone(&self) -> Strictness

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Strictness

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

Formats the value using the given formatter.

impl Default for Strictness

fn default() -> Strictness

Returns the “default value” for a type.

impl PartialEq for Strictness

fn eq(&self, other: &Strictness) -> 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 Strictness

impl Eq for Strictness

impl StructuralPartialEq for Strictness