非RFC822世界とのメイル交換に関する頭領域

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非RFC822世界とのメイル交換に関する頭領域

電子ニュースとかHTTPとかは厳密には RFC822 では無かったりしますが、広義の RFC 822 世界でしょう。 CPIM なんかも。

ここでは、 X.400 みたいな非SMTPな世界とのメッセージ交換を扱います。

RFC 822 世界の標準的な領域本体構文を持つ領域

Content-Language:領域 (1#language) (RFC 2156)

 ;; based on RFC 2156
 Content-Language = "Content-Language" [FWS] ":" [CFWS] language
                    * ([FWS] "," [FWS] language)
 language = 2*ALPHA ["(" language-description ")"]
 language-description = printable-string

token 型

 ;; based on RFC 2156
 Importance    = "Importance" [FWS] ":" [FWS] ("low" / "normal" / "high")
 Sensitivity   = "Sensitivity" [FWS] ":" [FWS]
                ("Personal" / "Private" / "Company-Confidential")
 Message-Type  = "Message-Type" [FWS] ":" [FWS] ("Delivery Report"
               / "InterPersonal Notification" / "Multiple Part")
 Autosubmitted = "Autosubmitted" [FWS] ":" [FWS]
                 (  "not-auto-submitted" / "auto-generated"
                  / "auto-replied" / "auto-forwarded")
 Autofowarded  = "Autoforwarded" [FWS] ":" [FWS] ("TRUE" / "FALSE")
 Conversion    = "Conversion" [FWS] ":" [FWS] prohibition
 Conversion-With-Loss = "Conversion-With-Loss" [FWS] ":" [FWS] prohibition
 prohibition   = "Prohibited" / "Allowed"
 Priority      = "Priority" [FWS] ":" [FWS]
                 ("normal" / "non-urgent" / "urgent")

その他

 Incomplete-Copy = "Incomplete-Copy" [FWS] ":" [FWS]
 ;; 本体部分が無い。
 Discarded-X400-IPMS-Extensions = "Discarded-X400-IPMS-Extensions"
                                  [FWS] ":" [FWS] object-identifier
                                  *([FWS] "," [FWS] object-identifier)
 ;; 変換不能 X.400 IPMS 拡張に使う。
 XMTSI  = "X400-MTS-Identifier" [FWS] ":" [FWS] mts-msg-id
 OEIT   = "Original-Encoded-Information-Types" [FWS] ":" [FWS] encoded-info
 XCT    = "X400-Content-Type" [FWS] ":" [FWS] mts-content-type
 XCID   = "X400-Content-Identifier" [FWS] ":" [FWS] printablestring
 DLEH   = "DL-Expansion-History" [FWS] ":" [FWS] mailbox ";" date-time ";"
 DXMTSX = "Discarded-X400-MTS-Extensions" [FWS] ":" [FWS]
                            (object-identifier / labelled-integer)
          *([FWS] "," [FWS] (object-identifier / labelled-integer) )
 mts-msg-id    = "[" global-id ";" *text "]"
 global-id     = 1*( "/" gid-attribute "=" std-printablestring ) "/"
 gid-attribute = standard-type / "RFC-822" / dd-key "." std-printablestring
 standard-type = key-string
 dd-key        = key-string
 std-printablestring = *( std-char / std-pair )
 std-char = DIGIT / ALPHA / " " / "'" / "+" / "," / "-" / "." / ":" / "?"
          / "(" / ")" / "{" / "}" / "*"
 std-pair = "$" ps-char
 mts-content-type  = "P2" / labelled-integer / object-identifier
 labelled-integer  = [key-string] "(" *(DIGIT / SP) ")"
 key-string        = *(DIGIT / ALPHA / "-")
 object-identifier = 1*( *(ALPHA / DIGIT / "-") "(" *(DIGIT / SP) ")" )

X400-Received: 領域 (RFC 2156) (See also Received:領域)

 X400-Received = "X400-Received" [FWS] ":" [FWS] x400-trace
 x400-trace    =   "by" [ "mta" mta "in" ]  global-id ";"
                 [ "deferred until" date-time ";" ]
                 [ "converted" "(" encoded-info ")" ";" ]
                 [ "attempted" md-or-mta ";"  ]
                   action-list ";" date-time
 mta           = word
 md-or-mta     = "MD" global-id / "MTA" mta
 Action-list   = action *([FWS] "," [FWS] action)
 action        = "Redirected" / "Expanded" / "Relayed" / "Rerouted"

例

   X400-Received: by /PRMD=UK.AC/ADMD=Gold 400/C=GB/ ; Relayed ;
           Tue, 20 Jun 89 19:25:11 +0100
   X400-Received: by mta "UK.AC.UCL.CS" in
          /PRMD=UK.AC/ADMD=Gold 400/C=GB/ ;
          deferred until  Tue, 20 Jun 89 14:24:22 +0100 ;
           converted (undefined, g3fax) ; attempted MD /ADMD=Foo/C=GB/ ;
           Relayed, Expanded, Redirected ; Tue, 20 Jun 89 19:25:11 +0100
   Received: from isode.com by isode.com
          (MIXER Conversion following RFC 1327);
          Thu, 2 Jan 1997 14:46:03 +0000

printable-string など

PrintableString

T.61String

メッセージ例

 Received: from mhs-relay.ac.uk by bells.cs.ucl.ac.uk via JANET with
           NIFTP id <7906-0@bells.cs.ucl.ac.uk>;
           Thu, 30 May 1991 18:24:55 +0100
 X400-Received: by mta "mhs-relay.ac.uk" in /PRMD=uk.ac/ADMD= /C=gb/;
                Relayed; Thu, 30 May 1991 18:23:26 +0100
 X400-Received: by /PRMD=HMG/ADMD=GOLD 400/C=GB/; Relayed;
                Thu, 30 May 1991 18:20:27 +0100
 Message-Type: Multiple Part
 Date: Thu, 30 May 1991 18:20:27 +0100
 X400-Originator: Stephen.Harrison@gosip-uk.hmg.gold-400.gb
 X400-MTS-Identifier:
      [/PRMD=HMG/ADMD=GOLD 400/C=GB/;PC1000-910530172027-57D8]
 Original-Encoded-Information-Types: ia5
 X400-Content-Type: P2-1984 (2)
 X400-Content-Identifier: Email Problems
 From: Stephen.Harrison@gosip-uk.hmg.gold-400.gb (Tel +44 71 217 3487)
 Message-ID: <PC1000-910530172027-57D8*@MHS>
 To: Jim Craigie <NTIN36@gec-b.rutherford.ac.uk>,
     Tony Bates <tony@ean-relay.ac.uk>,
     Steve Kille <S.Kille@cs.ucl.ac.uk>
 Subject: Email Problems
 Sender: Stephen.Harrison@gosip-uk.hmg.gold-400.gb
 MIME-Version: 1.0
 Content-Type: multipart/mixed; boundary=boundary-1
 
 --boundary-1
 Content-Type: text/plain; charset=US-ASCII
 
 Hope you gentlemen.......
 
 Regards,
 
 Stephen Harrison
 UK GOSIP Project
 
 --boundary-1
 Content-Type: message/rfc822
 
 From: Urs Eppenberger <Eppenberger@verw.switch.ch>
 Message-ID:
  <562*/S=Eppenberger/OU=verw/O=switch/PRMD=SWITCH/ADMD=ARCOM/C=CH/@MHS>
 To: "Stephen.Harrison" <Stephen.Harrison@gosip-uk.hmg.gold-400.gb>
 Cc: kimura@bsdarc.bsd.fc.nec.co.jp
 Subject: Response to Email link
 Content-Type: multipart/mixed; boundary=boundary-2
 
 
 --boundary-2
 
 Dear Mr Harrison......
 
 
 --boundary-2--
 
 --boundary-1--

(RFC 2156 より)

SEE ALSO

Updated: