Enum UnsubscribeMethod 

pub enum UnsubscribeMethod {
    OneClickPost(String),
    Mailto {
        address: String,
        subject: Option<String>,
        body: Option<String>,
    },
    HttpsOnly(String),
    None,
}

The opt-out method picked from a message’s unsubscribe headers, in preference order: OneClickPost → Mailto → HttpsOnly → None.

Variants

OneClickPost(String)

RFC 8058 one-click: POST List-Unsubscribe=One-Click (application/x-www-form-urlencoded) to this URL. No browser interaction needed.

Mailto

RFC 2369 mailto: — send an e-mail to this address. Per RFC 6068 the URL may carry ?subject= / ?body= that override our defaults.

Fields

address: String

subject: Option<String>

body: Option<String>

HttpsOnly(String)

HTTPS URL exists but no one-click marker. Won’t auto-drive; the caller should surface the URL for a manual click. HTTPS only — plaintext http:// entries are ignored on purpose.

None

No List-Unsubscribe header at all.

Trait Implementations

impl Clone for UnsubscribeMethod

fn clone(&self) -> UnsubscribeMethod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UnsubscribeMethod

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

Formats the value using the given formatter.

impl PartialEq for UnsubscribeMethod

fn eq(&self, other: &UnsubscribeMethod) -> 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 Eq for UnsubscribeMethod

impl StructuralPartialEq for UnsubscribeMethod