Enum DnsError 

pub enum DnsError {
    NxDomain,
    NoRecords,
    TempFail,
}

DNS error types — must distinguish NxDomain, NoRecords, and TempFail for correct SPF void lookup tracking and error propagation.

Variants

NxDomain

Domain does not exist (NXDOMAIN).

NoRecords

Domain exists but has no records of the requested type.

TempFail

Transient DNS failure (timeout, SERVFAIL, network error).

Trait Implementations

impl Clone for DnsError

fn clone(&self) -> DnsError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DnsError

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

Formats the value using the given formatter.

impl Display for DnsError

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

Formats the value using the given formatter.

impl Error for DnsError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for DnsError

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

impl StructuralPartialEq for DnsError