Accept
Accept-Additions
Accept-Charset
Accept-Datetime
Accept-Encoding
Accept-Features
Accept-Language
Accept-Patch
Accept-Post
Accept-Ranges
Access-Control
Access-Control-Allow-Credentials
Access-Control-Allow-Headers
Access-Control-Allow-Methods
Access-Control-Allow-Origin
Access-Control-Expose-Headers
Access-Control-Max-Age
Access-Control-Request-Headers
Access-Control-Request-Method
Age
A-IM
Allow
ALPN
Also-Control
Alternate-Recipient
Alternates
Alt-Svc
Alt-Used
Apparently-To
Apply-To-Redirect-Ref
Approved
Archive
Archived-At
Article-Names
Article-Updates
Authentication-Control
Authentication-Info
Authentication-Results
Authorization
Autoforwarded
Autosubmitted
Auto-Submitted
Base
Bcc
Body
Cache-Control
CalDAV-Timezones
Cancel-Key
Cancel-Lock
Cc
C-Ext
Close
C-Man
Comments
Compliance
Connection
Content-Alternative
Content-Base
Content-Description
Content-Disposition
Content-Duration
Content-Encoding
Content-features
Content-ID
Content-Identifier
Content-Language
Content-Length
Content-Location
Content-MD5
Content-Range
Content-Return
Content-Script-Type
Content-Style-Type
Content-Transfer-Encoding
Content-Type
Content-Version
Control
Conversion
Conversion-With-Loss
Cookie
Cookie2
C-Opt
Cost
C-PEP
C-PEP-Info
DASL
Date
Date-Received
DAV
Default-Style
Deferred-Delivery
Delivery-Date
Delta-Base
Depth
Derived-From
Destination
Differential-ID
Digest
Discarded-X400-IPMS-Extensions
Discarded-X400-MTS-Extensions
Disclose-Recipients
Disposition-Notification-Options
Disposition-Notification-To
Distribution
DKIM-Signature
DL-Expansion-History
Downgraded-Bcc
Downgraded-Cc
Downgraded-Disposition-Notification-To
Downgraded-Final-Recipient
Downgraded-From
Downgraded-In-Reply-To
Downgraded-Mail-From
Downgraded-Message-Id
Downgraded-Original-Recipient
Downgraded-Rcpt-To
Downgraded-References
Downgraded-Reply-To
Downgraded-Resent-Bcc
Downgraded-Resent-Cc
Downgraded-Resent-From
Downgraded-Resent-Reply-To
Downgraded-Resent-Sender
Downgraded-Resent-To
Downgraded-Return-Path
Downgraded-Sender
Downgraded-To
EDIINT-Features
Eesst-Version
Encoding
Encrypted
Errors-To
ETag
Expect
Expires
Expiry-Date
Ext
Followup-To
Forwarded
From
Generate-Delivery-Report
GetProfile
Hobareg
Host
HTTP2-Settings
If
If-Match
If-Modified-Since
If-None-Match
If-Range
If-Schedule-Tag-Match
If-Unmodified-Since
IM
Importance
Incomplete-Copy
Injection-Date
Injection-Info
In-Reply-To
Jabber-ID
Keep-Alive
Keywords
Label
Language
Last-Modified
Latest-Delivery-Time
Lines
Link
List-Archive
List-Help
List-ID
List-Owner
List-Post
List-Subscribe
List-Unsubscribe
List-Unsubscribe-Post
Location
Lock-Token
Man
Max-Forwards
Memento-Datetime
Message-Context
Message-ID
Message-Type
Meter
Method-Check
Method-Check-Expires
MIME-Version
MMHS-Acp127-Message-Identifier
MMHS-Authorizing-Users
MMHS-Codress-Message-Indicator
MMHS-Copy-Precedence
MMHS-Exempted-Address
MMHS-Extended-Authorisation-Info
MMHS-Handling-Instructions
MMHS-Message-Instructions
MMHS-Message-Type
MMHS-Originator-PLAD
MMHS-Originator-Reference
MMHS-Other-Recipients-Indicator-CC
MMHS-Other-Recipients-Indicator-To
MMHS-Primary-Precedence
MMHS-Subject-Indicator-Codes
MT-Priority
Negotiate
Newsgroups
NNTP-Posting-Date
NNTP-Posting-Host
Non-Compliance
Obsoletes
Opt
Optional
Optional-WWW-Authenticate
Ordering-Type
Organization
Origin
Original-Encoded-Information-Types
Original-From
Original-Message-ID
Original-Recipient
Original-Sender
Original-Subject
Originator-Return-Address
Overwrite
P3P
Path
PEP
Pep-Info
PICS-Label
Position
Posting-Version
Pragma
Prefer
Preference-Applied
Prevent-NonDelivery-Report
Priority
Privicon
ProfileObject
Protocol
Protocol-Info
Protocol-Query
Protocol-Request
Proxy-Authenticate
Proxy-Authentication-Info
Proxy-Authorization
Proxy-Connection
Proxy-Features
Proxy-Instruction
Public
Public-Key-Pins
Public-Key-Pins-Report-Only
Range
Received
Received-SPF
Redirect-Ref
References
Referer
Referer-Root
Relay-Version
Reply-By
Reply-To
Require-Recipient-Valid-Since
Resent-Bcc
Resent-Cc
Resent-Date
Resent-From
Resent-Message-ID
Resent-Reply-To
Resent-Sender
Resent-To
Resolution-Hint
Resolver-Location
Retry-After
Return-Path
Safe
Schedule-Reply
Schedule-Tag
Security-Scheme
Sec-Fetch-Dest
Sec-Fetch-Mode
Sec-Fetch-Site
Sec-Fetch-User
Sec-WebSocket-Accept
Sec-WebSocket-Extensions
Sec-WebSocket-Key
Sec-WebSocket-Protocol
Sec-WebSocket-Version
See-Also
Sender
Sensitivity
Server
Set-Cookie
Set-Cookie2
SetProfile
SIO-Label
SIO-Label-History
SLUG
SoapAction
Solicitation
Status-URI
Strict-Transport-Security
Subject
SubOK
Subst
Summary
Supersedes
Surrogate-Capability
Surrogate-Control
TCN
TE
Timeout
Title
To
Topic
Trailer
Transfer-Encoding
TTL
UA-Color
UA-Media
UA-Pixels
UA-Resolution
UA-Windowpixels
Upgrade
Urgency
URI
User-Agent
Variant-Vary
Vary
VBR-Info
Version
Via
Want-Digest
Warning
WWW-Authenticate
X400-Content-Identifier
X400-Content-Return
X400-Content-Type
X400-MTS-Identifier
X400-Originator
X400-Received
X400-Recipients
X400-Trace
X-Archived-At
X-Device-Accept
X-Device-Accept-Charset
X-Device-Accept-Encoding
X-Device-Accept-Language
X-Device-User-Agent
X-Frame-Options
X-Mittente
X-PGP-Sig
Xref
X-Ricevuta
X-Riferimento-Message-ID
X-TipoRicevuta
X-Trasporto
X-VerificaSicurezza
