Subject
From
To
Cc
Date
Bcc
Reply-To
Sender
Comments
In-Reply-To
Keywords
Received
Message-ID
References
Return-Path
MIME-Version
Content-Description
Content-ID
Content-Language
Content-Location
Content-Transfer-Encoding
Content-Type
Content-Disposition
Resent-To
Resent-From
Resent-Bcc
Resent-Cc
Resent-Sender
Resent-Date
Resent-Message-ID
List-Archive
List-Help
List-ID
List-Owner
List-Post
List-Subscribe
List-Unsubscribe
DKIM-Signature
ARC-Authentication-Results
ARC-Message-Signature
ARC-Seal
DKIM2-Signature
Message-Instance
Accept-Language
Alternate-Recipient
Archived-At
Authentication-Results
Auto-Submitted
Autoforwarded
Autosubmitted
Content-Alternative
Content-Duration
Content-features
Content-MD5
Content-Translation-Type
Conversion
Conversion-With-Loss
DL-Expansion-History
Deferred-Delivery
Delivery-Date
Discarded-X400-IPMS-Extensions
Discarded-X400-MTS-Extensions
Disclose-Recipients
Disposition-Notification-Options
Disposition-Notification-To
Downgraded-Final-Recipient
Downgraded-In-Reply-To
Downgraded-Message-Id
Downgraded-Original-Recipient
Downgraded-References
Encoding
Expires
Generate-Delivery-Report
HP-Outer
Importance
Incomplete-Copy
Language
Latest-Delivery-Time
List-Unsubscribe-Post
Message-Context
Message-Type
MMHS-Exempted-Address
MMHS-Extended-Authorisation-Info
MMHS-Subject-Indicator-Codes
MMHS-Handling-Instructions
MMHS-Message-Instructions
MMHS-Codress-Message-Indicator
MMHS-Originator-Reference
MMHS-Primary-Precedence
MMHS-Copy-Precedence
MMHS-Message-Type
MMHS-Other-Recipients-Indicator-To
MMHS-Other-Recipients-Indicator-CC
MMHS-Acp127-Message-Identifier
MMHS-Originator-PLAD
MT-Priority
Organization
Original-Encoded-Information-Types
Original-From
Original-Message-ID
Original-Recipient
Originator-Return-Address
Original-Subject
PICS-Label
Prevent-NonDelivery-Report
Priority
Received-SPF
Reply-By
Require-Recipient-Valid-Since
Sensitivity
Solicitation
Supersedes
TLS-Report-Domain
TLS-Report-Submitter
TLS-Required
VBR-Info
X400-Content-Identifier
X400-Content-Return
X400-Content-Type
X400-MTS-Identifier
X400-Originator
X400-Received
X400-Recipients
X400-Trace
Apparently-To
Author
CFBL-Address
CFBL-Feedback-ID
Delivered-To
EDIINT-Features
Eesst-Version
Errors-To
Face
Form-Sub
Jabber-ID
MMHS-Authorizing-Users
Privicon
SIO-Label
SIO-Label-History
Wrong-Recipient
