Enum EmailHeaders

pub enum EmailHeaders {
    AcceptLanguage,
    AlternateRecipient,
    ArchivedAt,
    AuthenticationResults,
    AutoSubmitted,
    AutoForwarded,
    Autosubmitted,
    Bcc,
    Cc,
    Comments,
    ContentIdentifier,
    ContentReturn,
    ContentType,
    ContentTransferEncoding,
    Conversion,
    ConversionWithLoss,
    DLExpansionHistory,
    Date,
    DeferredDelivery,
    DeliveryDate,
    DiscardedX400IPMSExtensions,
    DiscardedX400MTSExtensions,
    DiscloseRecipients,
    DispositionNotificationOptions,
    DispositionNotificationTo,
    DKIMSignature,
    DowngradedFinalRecipient,
    DowngradedInReplyTo,
    DowngradedMessageId,
    DowngradedOriginalRecipient,
    DowngradedReferences,
    Encoding,
    Encrypted,
    Expires,
    ExpiryDate,
    From,
    GenerateDeliveryReport,
    Importance,
    InReplyTo,
    IncompleteCopy,
    Keywords,
    Language,
    LatestDeliveryTime,
    ListArchive,
    ListHelp,
    ListId,
    ListOwner,
    ListPost,
    ListSubscribe,
    ListUnsubscribe,
    ListUnsubscribePost,
    MessageContext,
    MessageId,
    MessageType,
    MIMEType,
    MIMEVersion,
    MTPriority,
    Obsoletes,
    Organization,
    OriginalEncodedInformationTypes,
    OriginalFrom,
    OriginalMessageId,
    OriginalRecipient,
    OriginatorReturnAddress,
    OriginalSubject,
    PICSLabel,
    PreventNonDeliveryReport,
    Priority,
    Received,
    ReceivedSPF,
    References,
    ReplyBy,
    ReplyTo,
    RequireRecipientValidSince,
    ResentBcc,
    ResentCc,
    ResentDate,
    ResentFrom,
    ResentMessageId,
    ResentReplyTo,
    ResentSender,
    ResentTo,
    ReturnPath,
    Sender,
    Sensitivity,
    Solicitation,
    Subject,
    Supersedes,
    TLSReportDomain,
    TLSReportSubmitter,
    TLSRequired,
    To,
    VBRInfo,
    X400ContentIdentifier,
    X400ContentReturn,
    X400ContentType,
    X400MTSIdentifier,
    X400Originator,
    X400Received,
    X400Recipients,
    X400Trace,
    Unknown(String),
}

Email Headers

The headers that a email can contain. Reference: https://www.iana.org/assignments/message-headers/message-headers.xhtml

Example

use neo_email::mail::Mail;
use neo_email::headers::EmailHeaders;
 
let raw_email = b"From: jean@nervio\nSubject: Hello\n\nHello, World!";
let mail = Mail::<Vec<u8>>::from_bytes(raw_email.to_vec()).unwrap();
let from = mail.headers.get(&EmailHeaders::From).unwrap();

Variants

AcceptLanguage

Accept-Language

The Accept-Language header field can be used by user agents to indicate the set of natural languages that are preferred in the response. Reference: https://www.iana.org/go/rfc4021

AlternateRecipient

Alternate-Recipient

The Alternate-Recipient header field can be used to specify an alternative recipient for the message. Reference: https://www.iana.org/go/rfc4021

ArchivedAt

Archived-At

The Archived-At header field can be used to specify the date and time at which the message was archived. Reference: https://www.iana.org/go/rfc5064

AuthenticationResults

Authentication-Results

The Authentication-Results header field can be used to convey the results of message authentication checks. Reference: https://www.iana.org/go/rfc8601

AutoSubmitted

Auto-Submitted

The Auto-Submitted header field can be used to indicate that the message was generated automatically. Reference: https://www.iana.org/go/rfc3834

AutoForwarded

Autoforwarded

The Autoforwarded header field can be used to indicate that the message was automatically forwarded. Reference: https://www.iana.org/go/rfc4021

Autosubmitted

Autosubmitted

The Autosubmitted header field can be used to indicate that the message was generated automatically. Reference: https://www.iana.org/go/rfc4021

Bcc

Bcc

The Bcc header field can be used to specify recipients who are not to be included in the delivery of the message. Reference: https://www.iana.org/go/rfc5322

Cc

Cc

The Cc header field can be used to specify recipients who are to receive copies of the message. Reference: https://www.iana.org/go/rfc5322

Comments

Comments

The Comments header field can be used to provide additional information about the message. Reference: https://www.iana.org/go/rfc5322

ContentIdentifier

Content-Identifier

The Content-Identifier header field can be used to specify a unique identifier for the message. Reference: https://www.iana.org/go/rfc4021

ContentReturn

Content-Return

The Content-Return header field can be used to specify the return address for non-delivery reports. Reference: https://www.iana.org/go/rfc4021

ContentType

Content-Type

The Content-Type header field can be used to specify the media type of the message content. Reference: https://www.iana.org/go/rfc4021

ContentTransferEncoding

Content-Transfer-Encoding

The Content-Transfer-Encoding header field can be used to specify the encoding used for the message content. Reference: https://www.iana.org/go/rfc4021

Conversion

Conversion

The Conversion header field can be used to specify the conversion information for the message. Reference: https://www.iana.org/go/rfc4021

ConversionWithLoss

Conversion-With-Loss

The Conversion-With-Loss header field can be used to specify the conversion information for the message with loss. Reference: https://www.iana.org/go/rfc4021

DLExpansionHistory

DL-Expansion-History

The DL-Expansion-History header field can be used to specify the expansion history of a distribution list. Reference: https://www.iana.org/go/rfc4021

Date

Date

The Date header field can be used to specify the date and time at which the message was sent. Reference: https://www.iana.org/go/rfc5322

DeferredDelivery

Deferred-Delivery

The Deferred-Delivery header field can be used to specify the date and time at which the message is to be delivered.

DeliveryDate

Delivery-Date

The Delivery-Date header field can be used to specify the date and time at which the message was delivered.

DiscardedX400IPMSExtensions

Discarded-X400-IPMS-Extensions

The Discarded-X400-IPMS-Extensions header field can be used to specify the IPMS extensions that were discarded.

DiscardedX400MTSExtensions

Discarded-X400-MTS-Extensions

The Discarded-X400-MTS-Extensions header field can be used to specify the MTS extensions that were discarded. Reference: https://www.iana.org/go/rfc4021

DiscloseRecipients

Disclose-Recipients

The Disclose-Recipients header field can be used to specify whether the recipients of the message are disclosed. Reference: https://www.iana.org/go/rfc4021

DispositionNotificationOptions

Disposition-Notification-Options

The Disposition-Notification-Options header field can be used to specify the options for disposition notifications. Reference: https://www.iana.org/go/rfc4021

DispositionNotificationTo

Disposition-Notification-To

The Disposition-Notification-To header field can be used to specify the recipient for disposition notifications. Reference: https://www.iana.org/go/rfc4021

DKIMSignature

DKIM-Signature

The DKIM-Signature header field can be used to specify the DKIM signature for the message. Reference: https://www.iana.org/go/rfc6376

DowngradedFinalRecipient

Downgraded-Final-Recipient

The Downgraded-Final-Recipient header field can be used to specify the final recipient of the message. Reference: https://www.iana.org/go/rfc6857

DowngradedInReplyTo

Downgraded-In-Reply-To

The Downgraded-In-Reply-To header field can be used to specify the message that this message is a reply to. Reference: https://www.iana.org/go/rfc6857

DowngradedMessageId

Downgraded-Message-Id

The Downgraded-Message-Id header field can be used to specify the message identifier of the message. Reference: https://www.iana.org/go/rfc6857

DowngradedOriginalRecipient

Downgraded-Original-Recipient

The Downgraded-Original-Recipient header field can be used to specify the original recipient of the message. Reference: https://www.iana.org/go/rfc6857

DowngradedReferences

Downgraded-References

The Downgraded-References header field can be used to specify the references for the message. Reference: https://www.iana.org/go/rfc6857

Encoding

Encoding

The Encoding header field can be used to specify the encoding of the message. Reference: https://www.iana.org/go/rfc4021

Encrypted

Encrypted

The Encrypted header field can be used to specify whether the message is encrypted. Reference: https://www.iana.org/go/rfc4021

Expires

Expires

The Expires header field can be used to specify the expiration date of the message. Reference: https://www.iana.org/go/rfc4021

ExpiryDate

Expiry-Date

The Expiry-Date header field can be used to specify the expiry date of the message. Reference: https://www.iana.org/go/rfc4021

From

From

The From header field can be used to specify the author of the message. Reference: https://www.iana.org/go/rfc5322

GenerateDeliveryReport

Generate-Delivery-Report

The Generate-Delivery-Report header field can be used to specify whether a delivery report should be generated. Reference: https://www.iana.org/go/rfc4021

Importance

Importance

The Importance header field can be used to specify the importance of the message. Reference: https://www.iana.org/go/rfc4021

InReplyTo

In-Reply-To

The In-Reply-To header field can be used to specify the message that this message is a reply to. Reference: https://www.iana.org/go/rfc5322

Incomplete-Copy

The Incomplete-Copy header field can be used to specify that the message is an incomplete copy. Reference: https://www.iana.org/go/rfc4021

IncompleteCopy

Keywords

The Keywords header field can be used to specify the keywords for the message. Reference: https://www.iana.org/go/rfc5322

Keywords

Keywords

The Keywords header field can be used to specify the keywords for the message. Reference: https://www.iana.org/go/rfc5322

Language

Language

The Language header field can be used to specify the language of the message. Reference: https://www.iana.org/go/rfc4021

LatestDeliveryTime

Latest-Delivery-Time

The Latest-Delivery-Time header field can be used to specify the latest time at which the message should be delivered. Reference: https://www.iana.org/go/rfc4021

ListArchive

List-Archive

The List-Archive header field can be used to specify the URI for the list archive. Reference: https://www.iana.org/go/rfc4021

ListHelp

List-Help

The List-Help header field can be used to specify the URI for the list help. Reference: https://www.iana.org/go/rfc4021

ListId

List-Id

The List-Id header field can be used to specify the identifier for the list. Reference: https://www.iana.org/go/rfc4021

ListOwner

List-Owner

The List-Owner header field can be used to specify the owner of the list.

ListPost

List-Post

The List-Post header field can be used to specify the URI for posting to the list. Reference: https://www.iana.org/go/rfc4021

ListSubscribe

List-Subscribe

The List-Subscribe header field can be used to specify the URI for subscribing to the list. Reference: https://www.iana.org/go/rfc4021

ListUnsubscribe

List-Unsubscribe

The List-Unsubscribe header field can be used to specify the URI for unsubscribing from the list. Reference: https://www.iana.org/go/rfc4021

ListUnsubscribePost

List-Unsubscribe-Post

The List-Unsubscribe-Post header field can be used to specify the URI for unsubscribing from the list. Reference: https://www.iana.org/go/rfc8058

MessageContext

Message-Context

The Message-Context header field can be used to specify the context of the message. Reference: https://www.iana.org/go/rfc4021

MessageId

Message-Id

The Message-Id header field can be used to specify the identifier for the message. Reference: https://www.iana.org/go/rfc5322

MessageType

Message-Type

The Message-Type header field can be used to specify the type of the message. Reference: https://www.iana.org/go/rfc4021

MIMEType

MIME-Type

The MIME-Type header field can be used to specify the MIME type of the message. Reference: https://www.iana.org/go/rfc4021

MIMEVersion

MIME-Version

The MIME-Version header field can be used to specify the MIME version of the message. Reference: https://www.iana.org/go/rfc4021

MTPriority

MT-Priority

The MT-Priority header field can be used to specify the priority of the message. Reference: https://www.iana.org/go/rfc6758

Obsoletes

Obsoletes

The Obsoletes header field can be used to specify the messages that this message obsoletes. Reference: https://www.iana.org/go/rfc4021

Organization

Organization

The Organization header field can be used to specify the organization of the message. Reference: https://www.iana.org/go/rfc7681

OriginalEncodedInformationTypes

Original-Encoded-Information-Types

The Original-Encoded-Information-Types header field can be used to specify the encoded information types for the message. Reference: https://www.iana.org/go/rfc4021

OriginalFrom

Original-From

The Original-From header field can be used to specify the original author of the message. Reference: https://www.iana.org/go/rfc4021

OriginalMessageId

Original-Message-Id

The Original-Message-Id header field can be used to specify the original message identifier of the message. Reference: https://www.iana.org/go/rfc4021

OriginalRecipient

Original-Recipient

The Original-Recipient header field can be used to specify the original recipient of the message. Reference: https://www.iana.org/go/rfc3798

OriginatorReturnAddress

Originator-Return-Address

The Originator-Return-Address header field can be used to specify the return address for non-delivery reports. Reference: https://www.iana.org/go/rfc4021

OriginalSubject

Original-Subject

The Original-Subject header field can be used to specify the original subject of the message. Reference: https://www.iana.org/go/rfc4021

PICSLabel

PICS-Label

The PICS-Label header field can be used to specify the PICS label for the message. Reference: https://www.iana.org/go/rfc4021

PreventNonDeliveryReport

Prevent-NonDelivery-Report

The Prevent-NonDelivery-Report header field can be used to specify that non-delivery reports should not be generated. Reference: https://www.iana.org/go/rfc4021

Priority

Priority

The Priority header field can be used to specify the priority of the message. Reference: https://www.iana.org/go/rfc4021

Received

Received

The Received header field can be used to specify the date and time at which the message was received. Reference: https://www.iana.org/go/rfc5321

ReceivedSPF

Received-SPF

The Received-SPF header field can be used to specify the results of the SPF check. Reference: https://www.iana.org/go/rfc7208

References

References

The References header field can be used to specify the references for the message. Reference: https://www.iana.org/go/rfc5322

ReplyBy

Reply-By

The Reply-By header field can be used to specify the date and time by which a reply is requested. Reference: https://www.iana.org/go/rfc4021

ReplyTo

Reply-To

The Reply-To header field can be used to specify the address to which replies should be sent. Reference: https://www.iana.org/go/rfc5322

RequireRecipientValidSince

Require-Recipient-Valid-Since

The Require-Recipient-Valid-Since header field can be used to specify the date and time at which the recipient was validated. Reference: https://www.iana.org/go/rfc7293

ResentBcc

Resent-Bcc

The Resent-Bcc header field can be used to specify recipients who are not to be included in the delivery of the message. Reference: https://www.iana.org/go/rfc5322

ResentCc

Resent-Cc

The Resent-Cc header field can be used to specify recipients who are to receive copies of the message. Reference: https://www.iana.org/go/rfc5322

ResentDate

Resent-Date

The Resent-Date header field can be used to specify the date and time at which the message was resent. Reference: https://www.iana.org/go/rfc5322

ResentFrom

Resent-From

The Resent-From header field can be used to specify the sender of the message. Reference: https://www.iana.org/go/rfc5322

ResentMessageId

Resent-Message-Id

The Resent-Message-Id header field can be used to specify the message identifier of the message. Reference: https://www.iana.org/go/rfc5322

ResentReplyTo

Resent-Reply-To

The Resent-Reply-To header field can be used to specify the reply-to address for the message. Reference: https://www.iana.org/go/rfc5322

ResentSender

Resent-Sender

The Resent-Sender header field can be used to specify the sender of the message. Reference: https://www.iana.org/go/rfc5322

ResentTo

Resent-To

The Resent-To header field can be used to specify the recipients of the message. Reference: https://www.iana.org/go/rfc5322

ReturnPath

Return-Path

The Return-Path header field can be used to specify the return path for the message. Reference: https://www.iana.org/go/rfc5321

Sender

Sender

The Sender header field can be used to specify the sender of the message. Reference: https://www.iana.org/go/rfc5322

Sensitivity

Sensitivity

The Sensitivity header field can be used to specify the sensitivity of the message. Reference: https://www.iana.org/go/rfc4021

Solicitation

Solicitation

The Solicitation header field can be used to specify the solicitation for the message. Reference: https://www.iana.org/go/rfc3865

Subject

Subject

The Subject header field can be used to specify the subject of the message. Reference: https://www.iana.org/go/rfc5322

Supersedes

Supersedes

The Supersedes header field can be used to specify the message that this message supersedes. Reference: https://www.iana.org/go/rfc4021

TLSReportDomain

TLS-Report-Domain

The TLS-Report-Domain header field can be used to specify the domain for the TLS report. Reference: https://www.iana.org/go/rfc8460

TLSReportSubmitter

TLS-Report-Domain

The TLS-Report-Domain header field can be used to specify the domain for the TLS report. Reference: https://www.iana.org/go/rfc8460

TLSRequired

TLS-Required

The TLS-Required header field can be used to specify that TLS is required for the message. Reference: https://www.iana.org/go/rfc8689

To

To

The To header field can be used to specify the recipients of the message. Reference: https://www.iana.org/go/rfc5322

VBRInfo

VBR-Info

The VBR-Info header field can be used to specify the VBR information for the message. Reference: https://www.iana.org/go/rfc5518

X400ContentIdentifier

X400-Content-Identifier

The X400-Content-Identifier header field can be used to specify the content identifier for the message. Reference: https://www.iana.org/go/rfc4021

X400ContentReturn

X400-Content-Return

The X400-Content-Return header field can be used to specify the return address for non-delivery reports. Reference: https://www.iana.org/go/rfc4021

X400ContentType

X400-Content-Type

The X400-Content-Type header field can be used to specify the content type of the message. Reference: https://www.iana.org/go/rfc4021

X400MTSIdentifier

X400-MTS-Identifier

The X400-MTS-Identifier header field can be used to specify the MTS identifier for the message. Reference: https://www.iana.org/go/rfc4021

X400Originator

X400-Originator

The X400-Originator header field can be used to specify the originator of the message. Reference: https://www.iana.org/go/rfc4021

X400Received

X400-Received

The X400-Received header field can be used to specify the received information for the message. Reference: https://www.iana.org/go/rfc4021

X400Recipients

X400-Recipients

The X400-Recipients header field can be used to specify the recipients of the message. Reference: https://www.iana.org/go/rfc4021

X400Trace

X400-Trace

The X400-Trace header field can be used to specify the trace information for the message. Reference: https://www.iana.org/go/rfc4021

Unknown(String)

Unknown

The Unknown header field can be used to specify an unknown header.

Implementations

impl EmailHeaders

Email Headers Implementation

This implementation is for the EmailHeaders enum.

pub fn from_bytes(bytes: &[u8]) -> Result<Self, String>

From Bytes

This function creates a new EmailHeaders from bytes.

pub fn to_string(&self) -> &str

To String

This function converts the email header to a string.

pub fn from_string(s: &str) -> Self

From String

This function creates a new EmailHeaders from a string.

Trait Implementations

impl Clone for EmailHeaders

fn clone(&self) -> EmailHeaders

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EmailHeaders

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EmailHeaders

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for EmailHeaders

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

Formats the value using the given formatter.

impl FromStr for EmailHeaders

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for EmailHeaders

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for EmailHeaders

fn cmp(&self, other: &EmailHeaders) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for EmailHeaders

fn eq(&self, other: &EmailHeaders) -> 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 PartialOrd for EmailHeaders

fn partial_cmp(&self, other: &EmailHeaders) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for EmailHeaders

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for EmailHeaders

impl StructuralPartialEq for EmailHeaders