HeaderId enumeration

The HeaderId enumeration identifies header types.

Namespace:  Microsoft.Exchange.Data.Mime
Assembly:  Microsoft.Exchange.Data.Common (in Microsoft.Exchange.Data.Common.dll)

public enum HeaderId

Member nameDescription
UnknownIdentifies an Unknown header.
ReceivedIdentifies a Received header.
DateIdentifies a Date header.
FromIdentifies a From header.
SubjectIdentifies a Subject header.
SenderIdentifies a Sender header.
ToIdentifies a To header.
CcIdentifies a Cc header.
BccIdentifies a Bcc header.
MessageIdIdentifies a MessageId header.
InReplyToIdentifies an InReplyTo header.
ReferencesIdentifies a References header.
ReturnPathIdentifies a ReturnPath header.
CommentsIdentifies a Comments header.
KeywordsIdentifies a Keywords header.
EncryptedIdentifies an Encrypted header.
ReplyByIdentifies a ReplyBy header.
ReplyToIdentifies a ReplyTo header.
ResentDateIdentifies a ResentDate header.
ResentSenderIdentifies a ResentSender header.
ResentFromIdentifies a ResentFrom header.
ResentBccIdentifies a ResentBcc header.
ResentCcIdentifies a ResentCc header.
ResentToIdentifies a ResentTo header.
ResentReplyToIdentifies a ResentReplyTo header.
ResentMessageIdIdentifies a ResentMessageId header.
ApparentlyToIdentifies an ApparentlyTo header.
ApprovedIdentifies an Approved header.
ControlIdentifies a Control header.
DeferredDeliveryIdentifies a DeferredDelivery header.
DistributionIdentifies a Distribution header.
EncodingIdentifies an Encoding header.
ExpiresIdentifies an Expires header.
ExpiryDateIdentifies an ExpiryDate header.
FollowUpToIdentifies a FollowUpTo header.
LinesIdentifies a Lines header.
BytesIdentifies a Bytes header.
ArticleIdentifies an Article header.
ImportanceIdentifies an Importance header.
SupercedesIdentifies a Supercedes header.
NewsGroupsIdentifies a NewsGroups header.
NntpPostingHostIdentifies an NntpPostingHost header.
OrganizationIdentifies an Organization header.
PathIdentifies a Path header.
PrecedenceIdentifies a Precedence header.
PriorityIdentifies a Priority header.
ReturnReceiptToIdentifies a ReturnReceiptTo header.
DispositionNotificationToIdentifies a DispositionNotificationTo header.
RRIdentifies a RR header.
SensitivityIdentifies a Sensitivity header.
SummaryIdentifies a Summary header.
XRefIdentifies an XRef header.
AdHocIdentifies an AdHoc header.
ListHelpIdentifies a ListHelp header.
ListSubscribeIdentifies a ListSubscribe header.
ListUnsubscribeIdentifies a ListUnsubscribe header.
MimeVersionIdentifies a MimeVersion header.
ContentBaseIdentifies a ContentBase header.
ContentClassIdentifies a ContentClass header.
ContentDescriptionIdentifies a ContentDescription header.
ContentDispositionIdentifies a ContentDisposition header.
ContentIdIdentifies a ContentId header.
ContentLanguageIdentifies a ContentLanguage header.
ContentLocationIdentifies a ContentLocation header.
ContentMD5Identifies a ContentMD5 header.
ContentTransferEncodingIdentifies a ContentTransferEncoding header.
ContentTypeIdentifies a ContentType header.
XPriorityIdentifies an XPriority header.
XMSMailPriorityIdentifies an XMSMailPriority header.
XExchangeBccA BCC header.
XExchangeCrossPremisesBccA cross-premises BCC header.
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