Enum DnsError 

pub enum DnsError {
    Resolver(String),
    RecordNotFound(ResponseCode),
    InvalidRecordType,
}

A DNS lookup failure, carried by Error::Dns.

Verifiers map these errors to result codes: DnsError::Resolver becomes a temperror result, while DnsError::RecordNotFound and DnsError::InvalidRecordType become none or permerror depending on the protocol.

Variants

Resolver(String)

The query could not be completed (network failure, timeout, server failure). The string holds the resolver’s error message. Treated as a transient error.

RecordNotFound(ResponseCode)

The query completed but returned no records of the requested type. Holds the DNS response code (NXDOMAIN or NOERROR with an empty answer section).

InvalidRecordType

Records were returned, but none of them could be parsed as the expected record type (for example, a TXT record without v=spf1 when an SPF record was requested).

Trait Implementations

impl Clone for DnsError

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 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 Eq for DnsError

impl PartialEq for DnsError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DnsError