MailKit Documentation
API Reference
MimeKit
AttachmentCollection Class
BodyBuilder Class
ContentDisposition Class
ContentEncoding Enumeration
ContentType Class
DomainList Class
EncodingConstraint Enumeration
ExperimentalMimeParser Class
FormatOptions Class
GroupAddress Class
Header Class
HeaderId Enumeration
HeaderIdExtensions Class
HeaderList Class
HeaderListChangedAction Enumeration
HeaderListCollection Class
IMessageDeliveryStatus Interface
IMessageDispositionNotification Interface
IMessageFeedbackReport Interface
IMessagePart Interface
IMessagePartial Interface
IMimeContent Interface
IMimeEntity Interface
IMimeMessage Interface
IMimeParser Interface
IMimePart Interface
IMultipart Interface
IMultipartAlternative Interface
IMultipartRelated Interface
IMultipartReport Interface
InternetAddress Class
InternetAddressList Class
ITextPart Interface
ITextRfc822Headers Interface
MailboxAddress Class
MessageDeliveryStatus Class
MessageDispositionNotification Class
MessageFeedbackReport Class
MessageIdList Class
MessageImportance Enumeration
MessagePart Class
MessagePartial Class
MessagePriority Enumeration
MimeContent Class
MimeEntity Class
MimeEntityBeginEventArgs Class
MimeEntityConstructorArgs Class
MimeEntityEndEventArgs Class
MimeFormat Enumeration
MimeIterator Class
MimeMessage Class
MimeMessageBeginEventArgs Class
MimeMessageEndEventArgs Class
MimeParser Class
MimePart Class
MimeReader Class
MimeTypes Class
MimeVisitor Class
Multipart Class
MultipartAlternative Class
MultipartRelated Class
MultipartReport Class
NewLineFormat Enumeration
Parameter Class
ParameterEncodingMethod Enumeration
ParameterList Class
ParseException Class
ParserOptions Class
RfcComplianceMode Enumeration
TextPart Class
TextRfc822Headers Class
XMessagePriority Enumeration
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MimeKit

HeaderId Enumeration

An enumeration of common header fields.

Namespace: MimeKit
Assembly: MimeKit (in MimeKit.dll) Version: 4.7.1
Syntax
C#
Copy
public enum HeaderId
Members
Member nameValueDescription
AcceptLanguage0 The Accept-Language header field.
AdHoc1 The Ad-Hoc header field.
AlternateRecipient2 The Alternate-Recipient header field.
ApparentlyTo3 The Apparently-To header field.
Approved4 The Approved header field.
ArcAuthenticationResults5 The ARC-Authentication-Results header field.
ArcMessageSignature6 The ARC-Message-Signature header field.
ArcSeal7 The ARC-Seal header field.
Archive8 The Archive header field.
ArchivedAt9 The Archived-At header field.
Unknown-1 An unknown header field.
Article10 The Article header field.
AuthenticationResults11 The Authentication-Results header field.
Autocrypt12 The Autocrypt header field.
AutocryptGossip13 The Autocrypt-Gossip header field.
AutocryptSetupMessage14 The Autocrypt-Setup-Message header field.
Autoforwarded15 The Autoforwarded header field.
AutoSubmitted16 The Auto-Submitted header field.
Autosubmitted17 The Autosubmitted header field.
Base18 The Base header field.
Bcc19 The Bcc header field.
Body20 The Body header field.
Bytes21 The Bytes header field.
Cc22 The Cc header field.
Comments23 The Comments header field.
ContentAlternative24 The Content-Alternative header field.
ContentBase25 The Content-Base header field.
ContentClass26 The Content-Class header field.
ContentDescription27 The Content-Description header field.
ContentDisposition28 The Content-Disposition header field.
ContentDuration29 The Content-Duration header field.
ContentFeatures30 The Content-Features header field.
ContentId31 The Content-Id header field.
ContentIdentifier32 The Content-Identifier header field.
ContentLanguage33 The Content-Language header field.
ContentLength34 The Content-Length header field.
ContentLocation35 The Content-Location header field.
ContentMd536 The Content-Md5 header field.
ContentReturn37 The Content-Return header field.
ContentTransferEncoding38 The Content-Transfer-Encoding header field.
ContentTranslationType39 The Content-Translation-Type header field.
ContentType40 The Content-Type header field.
Control41 The Control header field.
Conversion42 The Conversion header field.
ConversionWithLoss43 The Conversion-With-Loss header field.
Date44 The Date header field.
DateReceived45 The Date-Received header field.
DeferredDelivery46 The Deferred-Delivery header field.
DeliveryDate47 The Delivery-Date header field.
DiscloseRecipients48 The Disclose-Recipients header field.
DispositionNotificationOptions49 The Disposition-Notification-Options header field.
DispositionNotificationTo50 The Disposition-Notification-To header field.
Distribution51 The Distribution header field.
DkimSignature52 The DKIM-Signature header field.
DomainKeySignature53 The DomainKey-Signature header field.
Encoding54 The Encoding header field.
Encrypted55 The Encrypted header field.
Expires56 The Expires header field.
ExpiryDate57 The Expiry-Date header field.
FollowupTo58 The Followup-To header field.
From59 The From header field.
GenerateDeliveryReport60 The Generate-Delivery-Report header field.
Importance61 The Importance header field.
InjectionDate62 The Injection-Date header field.
InjectionInfo63 The Injection-Info header field.
InReplyTo64 The In-Reply-To header field.
Keywords65 The Keywords header field.
Language66 The Language header.
LatestDeliveryTime67 The Latest-Delivery-Time header.
Lines68 The Lines header field.
ListArchive69 The List-Archive header field.
ListHelp70 The List-Help header field.
ListId71 The List-Id header field.
ListOwner72 The List-Owner header field.
ListPost73 The List-Post header field.
ListSubscribe74 The List-Subscribe header field.
ListUnsubscribe75 The List-Unsubscribe header field.
ListUnsubscribePost76 The List-Unsubscribe-Post header field.
MessageId77 The Message-Id header field.
MimeVersion78 The MIME-Version header field.
Newsgroups79 The Newsgroups header field.
NntpPostingHost80 The Nntp-Posting-Host header field.
Organization81 The Organization header field.
OriginalFrom82 The Original-From header field.
OriginalMessageId83 The Original-Message-Id header field.
OriginalRecipient84 The Original-Recipient header field.
OriginalReturnAddress85 The Original-Return-Address header field.
OriginalSubject86 The Original-Subject header field.
Path87 The Path header field.
Precedence88 The Precedence header field.
PreventNonDeliveryReport89 The Prevent-NonDelivery-Report header field.
Priority90 The Priority header field.
Received91 The Received header field.
ReceivedSPF92 The Received-SPF header field.
References93 The References header field.
RelayVersion94 The Relay-Version header field.
ReplyBy95 The Reply-By header field.
ReplyTo96 The Reply-To header field.
RequireRecipientValidSince97 The Require-Recipient-Valid-Since header field.
ResentBcc98 The Resent-Bcc header field.
ResentCc99 The Resent-Cc header field.
ResentDate100 The Resent-Date header field.
ResentFrom101 The Resent-From header field.
ResentMessageId102 The Resent-Message-Id header field.
ResentReplyTo103 The Resent-Reply-To header field.
ResentSender104 The Resent-Sender header field.
ResentTo105 The Resent-To header field.
ReturnPath106 The Return-Path header field.
ReturnReceiptTo107 The Return-Receipt-To header field.
SeeAlso108 The See-Also header field.
Sender109 The Sender header field.
Sensitivity110 The Sensitivity header field.
Solicitation111 The Solicitation header field.
Status112 The Status header field.
Subject113 The Subject header field.
Summary114 The Summary header field.
Supersedes115 The Supersedes header field.
TLSRequired116 The TLS-Required header field.
To117 The To header field.
UserAgent118 The User-Agent header field.
X400ContentIdentifier119 The X400-Content-Identifier header field.
X400ContentReturn120 The X400-Content-Return header field.
X400ContentType121 The X400-Content-Type header field.
X400MTSIdentifier122 The X400-MTS-Identifier header field.
X400Originator123 The X400-Originator header field.
X400Received124 The X400-Received header field.
X400Recipients125 The X400-Recipients header field.
X400Trace126 The X400-Trace header field.
XMailer127 The X-Mailer header field.
XMSMailPriority128 The X-MSMail-Priority header field.
XPriority129 The X-Priority header field.
XStatus130 The X-Status header field.
Remarks
Comparing enum values is not only faster, but less error prone than comparing strings.
See Also