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Permanent Header Messages

per [RFC3864]


[RFC3864] defines an IANA maintained registry of Message Headers. This registry includes the Permanent Headers.

Permanent Header Registrations

Header Name
Protocol
Reference
A-IM  http  [RFC4229]
Accept  http  [RFC4229]
Accept-Additions  http  [RFC4229]
Accept-Charset  http  [RFC4229]
Accept-Encoding  http  [RFC4229]
Accept-Features  http  [RFC4229]
Accept-Language  http  [RFC4229]
Accept-Language  mail [RFC4021]
Accept-Ranges  http  [RFC4229]
Age  http  [RFC4229]
Allow  http  [RFC4229]
Alternate-Recipient  mail [RFC4021]
Alternates  http  [RFC4229]
Apply-To-Redirect-Ref  http  [RFC4437]
Authentication-Info  http  [RFC4229]
Authorization  http  [RFC4229]
Autoforwarded  mail [RFC4021]
Autosubmitted  mail [RFC4021]
Bcc  mail [RFC4021]
C-Ext  http  [RFC4229]
C-Man  http  [RFC4229]
C-Opt  http  [RFC4229]
C-PEP  http  [RFC4229]
C-PEP-Info  http  [RFC4229]
Cache-Control  http  [RFC4229]
Cc  mail [RFC4021]
Comments  mail [RFC4021]
Connection  http  [RFC4229]
Content-Alternative  MIME [RFC4021]
Content-Base  http  [RFC4229]
Content-Base  MIME [RFC4021]
Content-Description  MIME [RFC4021]
Content-Disposition  http  [RFC4229]
Content-Disposition  MIME [RFC4021]
Content-Duration  MIME [RFC4021]
Content-Encoding  http  [RFC4229]
Content-features  MIME [RFC4021]
Content-ID  http  [RFC4229]
Content-ID  MIME [RFC4021]
Content-Identifier  mail [RFC4021]
Content-Language  http  [RFC4229]
Content-Language  MIME [RFC4021]
Content-Length  http  [RFC4229]
Content-Location  http  [RFC4229]
Content-Location  MIME [RFC4021]
Content-MD5  http  [RFC4229]
Content-MD5  MIME [RFC4021]
Content-Range  http  [RFC4229]
Content-Return  mail [RFC4021]
Content-Script-Type  http  [RFC4229]
Content-Style-Type  http  [RFC4229]
Content-Transfer-Encoding  MIME [RFC4021]
Content-Type  http  [RFC4229]
Content-Type  MIME [RFC4021]
Content-Version  http  [RFC4229]
Conversion  mail [RFC4021]
Conversion-With-Loss  mail [RFC4021]
Cookie  http  [RFC4229]
Cookie2  http  [RFC4229]
DAV  http  [RFC4229]
DL-Expansion-History  mail [RFC4021]
Date  http  [RFC4229]
Date  mail [RFC4021]
Default-Style  http  [RFC4229]
Deferred-Delivery  mail [RFC4021]
Delivery-Date  mail [RFC4021]
Delta-Base  http  [RFC4229]
Depth  http  [RFC4229]
Derived-From  http  [RFC4229]
Destination  http  [RFC4229]
Differential-ID  http  [RFC4229]
Digest  http  [RFC4229]
Discarded-X400-IPMS-Extensions  mail [RFC4021]
Discarded-X400-MTS-Extensions  mail [RFC4021]
Disclose-Recipients  mail [RFC4021]
Disposition-Notification-Options  mail [RFC4021]
Disposition-Notification-To  mail [RFC4021]
ETag  http  [RFC4229]
Encoding  mail [RFC4021]
Encrypted  mail [RFC4021]
Expect  http  [RFC4229]
Expires  http  [RFC4229]
Expires  mail [RFC4021]
Expiry-Date  mail [RFC4021]
Ext  http  [RFC4229]
From  http  [RFC4229]
From  mail [RFC4021]
Generate-Delivery-Report  mail [RFC4021]
GetProfile  http  [RFC4229]
Host  http  [RFC4229]
IM  http  [RFC4229]
If  http  [RFC4229]
If-Match  http  [RFC4229]
If-Modified-Since  http  [RFC4229]
If-None-Match  http  [RFC4229]
If-Range  http  [RFC4229]
If-Unmodified-Since  http  [RFC4229]
Importance  mail [RFC4021]
In-Reply-To  mail [RFC4021]
Incomplete-Copy  mail [RFC4021]
Keep-Alive  http  [RFC4229]
Keywords  mail [RFC4021]
Label  http  [RFC4229]
Language  mail [RFC4021]
Last-Modified  http  [RFC4229]
Latest-Delivery-Time  mail [RFC4021]
Link  http  [RFC4229]
List-Archive  mail [RFC4021]
List-Help  mail [RFC4021]
List-ID  mail [RFC4021]
List-Owner  mail [RFC4021]
List-Post  mail [RFC4021]
List-Subscribe  mail [RFC4021]
List-Unsubscribe  mail [RFC4021]
Location  http  [RFC4229]
Lock-Token  http  [RFC4229]
MIME-Version  http  [RFC4229]
MIME-Version  MIME [RFC4021]
Man  http  [RFC4229]
Max-Forwards  http  [RFC4229]
Message-Context  mail [RFC4021]
Message-ID  mail [RFC4021]
Message-Type  mail [RFC4021]
Meter  http  [RFC4229]
Negotiate  http  [RFC4229]
Obsoletes  mail [RFC4021]
Opt  http  [RFC4229]
Original-Encoded-Information-Types  mail [RFC4021]
Original-Message-ID  mail [RFC4021]
Originator-Return-Address  mail [RFC4021]
Overwrite  http  [RFC4229]
P3P  http  [RFC4229]
PEP  http  [RFC4229]
PICS-Label  http  [RFC4229]
PICS-Label  mail [RFC4021]
Pep-Info  http  [RFC4229]
Pragma  http  [RFC4229]
Prevent-NonDelivery-Report  mail [RFC4021]
Priority  mail [RFC4021]
ProfileObject  http  [RFC4229]
Protocol  http  [RFC4229]
Protocol-Info  http  [RFC4229]
Protocol-Query  http  [RFC4229]
Protocol-Request  http  [RFC4229]
Proxy-Authenticate  http  [RFC4229]
Proxy-Authentication-Info  http  [RFC4229]
Proxy-Authorization  http  [RFC4229]
Proxy-Features  http  [RFC4229]
Proxy-Instruction  http  [RFC4229]
Public  http  [RFC4229]
Range  http  [RFC4229]
Received  mail [RFC4021]
Received-SPF  mail  [RFC4408]
Redirect-Ref  http  [RFC4437]
References  mail [RFC4021]
Referer  http  [RFC4229]
Reply-By  mail [RFC4021]
Reply-To  mail [RFC4021]
Resent-Bcc  mail [RFC4021]
Resent-Cc  mail [RFC4021]
Resent-Date  mail [RFC4021]
Resent-From  mail [RFC4021]
Resent-Message-ID  mail [RFC4021]
Resent-Reply-To  mail [RFC4021]
Resent-Sender  mail [RFC4021]
Resent-To  mail [RFC4021]
Retry-After  http  [RFC4229]
Return-Path  mail [RFC4021]
Safe  http  [RFC4229]
Security-Scheme  http  [RFC4229]
Sender  mail [RFC4021]
Sensitivity  mail [RFC4021]
Server  http  [RFC4229]
Set-Cookie  http  [RFC4229]
Set-Cookie2  http  [RFC4229]
SetProfile  http  [RFC4229]
SoapAction  http  [RFC4229]
Solicitation  mail  [RFC3865]
Status-URI  http  [RFC4229]
Subject  mail [RFC4021]
Supersedes  mail [RFC4021]
Surrogate-Capability  http  [RFC4229]
Surrogate-Control  http  [RFC4229]
TCN  http  [RFC4229]
TE  http  [RFC4229]
Timeout  http  [RFC4229]
To  mail [RFC4021]
Trailer  http  [RFC4229]
Transfer-Encoding  http  [RFC4229]
URI  http  [RFC4229]
Upgrade  http  [RFC4229]
User-Agent  http  [RFC4229]
Variant-Vary  http  [RFC4229]
Vary  http  [RFC4229]
Via  http  [RFC4229]
WWW-Authenticate  http  [RFC4229]
Want-Digest  http  [RFC4229]
Warning  http  [RFC4229]
X400-Content-Identifier  mail [RFC4021]
X400-Content-Return  mail [RFC4021]
X400-Content-Type  mail [RFC4021]
X400-MTS-Identifier  mail [RFC4021]
X400-Originator  mail [RFC4021]
X400-Received  mail [RFC4021]
X400-Recipients  mail [RFC4021]
X400-Trace  mail [RFC4021]

 


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Page updated 2006-09-29
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