Enum Error 

pub enum Error {
    Request(Error),
    Auth(String),
    Graph(String),
    Config(String),
}

Errors that can occur when using the Graph mail client or MCP server.

Variants

Request(Error)

HTTP or network failure (e.g. reqwest error).

Auth(String)

OAuth2 or token endpoint error (invalid credentials, bad response, etc.).

Graph(String)

Microsoft Graph API error (e.g. sendMail returned non-202 or error body).

Config(String)

Invalid configuration (missing required field, poisoned mutex, etc.).

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.