AcceptLanguage
AcceptLanguage: "AcceptLanguage"
AlternateRecipient
AlternateRecipient: "AlternateRecipient"
ApparentlyTo
ApparentlyTo: "ApparentlyTo"
Approved
Approved: "Approved"
ArcAuthenticationResults
ArcAuthenticationResults: "ArcAuthenticationResults"
ArcMessageSignature
ArcMessageSignature: "ArcMessageSignature"
ArcSeal
ArcSeal: "ArcSeal"
Archive
Archive: "Archive"
ArchivedAt
ArchivedAt: "ArchivedAt"
Article
Article: "Article"
AuthenticationResults
AuthenticationResults: "AuthenticationResults"
Autocrypt
Autocrypt: "Autocrypt"
AutocryptGossip
AutocryptGossip: "AutocryptGossip"
AutocryptSetupMessage
AutocryptSetupMessage: "AutocryptSetupMessage"
Autoforwarded
Autoforwarded: "Autoforwarded"
AutoSubmitted
AutoSubmitted: "AutoSubmitted"
Autosubmitted
Autosubmitted: "Autosubmitted"
ContentAlternative
ContentAlternative: "ContentAlternative"
ContentBase
ContentBase: "ContentBase"
ContentClass
ContentClass: "ContentClass"
ContentDescription
ContentDescription: "ContentDescription"
ContentDisposition
ContentDisposition: "ContentDisposition"
ContentDuration
ContentDuration: "ContentDuration"
ContentFeatures
ContentFeatures: "ContentFeatures"
ContentId
ContentId: "ContentId"
ContentIdentifier
ContentIdentifier: "ContentIdentifier"
ContentLanguage
ContentLanguage: "ContentLanguage"
ContentLength
ContentLength: "ContentLength"
ContentLocation
ContentLocation: "ContentLocation"
ContentMd5
ContentMd5: "ContentMd5"
ContentReturn
ContentReturn: "ContentReturn"
ContentTransferEncoding
ContentTransferEncoding: "ContentTransferEncoding"
ContentTranslationType
ContentTranslationType: "ContentTranslationType"
ContentType
ContentType: "ContentType"
Control
Control: "Control"
Conversion
Conversion: "Conversion"
ConversionWithLoss
ConversionWithLoss: "ConversionWithLoss"
DateReceived
DateReceived: "DateReceived"
DeferredDelivery
DeferredDelivery: "DeferredDelivery"
DeliveryDate
DeliveryDate: "DeliveryDate"
DiscloseRecipients
DiscloseRecipients: "DiscloseRecipients"
DispositionNotificationOptions
DispositionNotificationOptions: "DispositionNotificationOptions"
DispositionNotificationTo
DispositionNotificationTo: "DispositionNotificationTo"
Distribution
Distribution: "Distribution"
DkimSignature
DkimSignature: "DkimSignature"
DomainKeySignature
DomainKeySignature: "DomainKeySignature"
Encoding
Encoding: "Encoding"
Encrypted
Encrypted: "Encrypted"
Expires
Expires: "Expires"
ExpiryDate
ExpiryDate: "ExpiryDate"
FollowupTo
FollowupTo: "FollowupTo"
GenerateDeliveryReport
GenerateDeliveryReport: "GenerateDeliveryReport"
Importance
Importance: "Importance"
InjectionDate
InjectionDate: "InjectionDate"
InjectionInfo
InjectionInfo: "InjectionInfo"
InReplyTo
InReplyTo: "InReplyTo"
Keywords
Keywords: "Keywords"
Language
Language: "Language"
LatestDeliveryTime
LatestDeliveryTime: "LatestDeliveryTime"
ListArchive
ListArchive: "ListArchive"
ListHelp
ListHelp: "ListHelp"
ListOwner
ListOwner: "ListOwner"
ListPost
ListPost: "ListPost"
ListSubscribe
ListSubscribe: "ListSubscribe"
ListUnsubscribe
ListUnsubscribe: "ListUnsubscribe"
ListUnsubscribePost
ListUnsubscribePost: "ListUnsubscribePost"
MessageId
MessageId: "MessageId"
MimeVersion
MimeVersion: "MimeVersion"
Newsgroups
Newsgroups: "Newsgroups"
NntpPostingHost
NntpPostingHost: "NntpPostingHost"
Organization
Organization: "Organization"
OriginalFrom
OriginalFrom: "OriginalFrom"
OriginalMessageId
OriginalMessageId: "OriginalMessageId"
OriginalRecipient
OriginalRecipient: "OriginalRecipient"
OriginalReturnAddress
OriginalReturnAddress: "OriginalReturnAddress"
OriginalSubject
OriginalSubject: "OriginalSubject"
Precedence
Precedence: "Precedence"
PreventNonDeliveryReport
PreventNonDeliveryReport: "PreventNonDeliveryReport"
Priority
Priority: "Priority"
Received
Received: "Received"
ReceivedSPF
ReceivedSPF: "ReceivedSPF"
References
References: "References"
RelayVersion
RelayVersion: "RelayVersion"
ReplyBy
ReplyBy: "ReplyBy"
ReplyTo
ReplyTo: "ReplyTo"
RequireRecipientValidSince
RequireRecipientValidSince: "RequireRecipientValidSince"
ResentBcc
ResentBcc: "ResentBcc"
ResentCc
ResentCc: "ResentCc"
ResentDate
ResentDate: "ResentDate"
ResentFrom
ResentFrom: "ResentFrom"
ResentMessageId
ResentMessageId: "ResentMessageId"
ResentReplyTo
ResentReplyTo: "ResentReplyTo"
ResentSender
ResentSender: "ResentSender"
ResentTo
ResentTo: "ResentTo"
ReturnPath
ReturnPath: "ReturnPath"
ReturnReceiptTo
ReturnReceiptTo: "ReturnReceiptTo"
SeeAlso
SeeAlso: "SeeAlso"
Sensitivity
Sensitivity: "Sensitivity"
Solicitation
Solicitation: "Solicitation"
Subject
Subject: "Subject"
Summary
Summary: "Summary"
Supersedes
Supersedes: "Supersedes"
TLSRequired
TLSRequired: "TLSRequired"
UserAgent
UserAgent: "UserAgent"
X400ContentIdentifier
X400ContentIdentifier: "X400ContentIdentifier"
X400ContentReturn
X400ContentReturn: "X400ContentReturn"
X400ContentType
X400ContentType: "X400ContentType"
X400MTSIdentifier
X400MTSIdentifier: "X400MTSIdentifier"
X400Originator
X400Originator: "X400Originator"
X400Received
X400Received: "X400Received"
X400Recipients
X400Recipients: "X400Recipients"
X400Trace
X400Trace: "X400Trace"
XMailer
XMailer: "XMailer"
XMSMailPriority
XMSMailPriority: "XMSMailPriority"
XPriority
XPriority: "XPriority"
XStatus
XStatus: "XStatus"
Unknown
Unknown: "Unknown"
Identifies well-known message header fields.