Newsgroups: fj.mail
Path: galaxy.trc.rwcp.or.jp!jaist-news!cs.titech!wnoc-tyo-news!etl.go.jp!ysato
From: ysato@etl.go.jp (Yutaka Sato =?ISO-2022-JP?B?GyRAOjRGI0stGyhK?=)
Subject: Re: Why MIME ?
Content-Type: text/plain; charset=ISO-2022-JP
Message-ID: <iloxA.ysato@etl.go.jp>
Reply-To: ysato@etl.go.jp (Yutaka Sato =?ISO-2022-JP?B?GyRAOjRGI0stGyhK?=)
Organization: Electrotechnical Laboratory, Tsukuba Science City
References: <ikmHM.ysato@etl.go.jp> <NAO.93Oct13113256@mimo.jaist.ac.jp> 
	<ikxiK.ysato@etl.go.jp> 
	<1993Oct14.115030.4622@t-server.t.u-tokyo.ac.jp> 
	<ilKri.ysato@etl.go.jp> 
	<1993Oct14.191623.13757@t-server.t.u-tokyo.ac.jp> 
	<MORIOKA.93Oct15132428@is15e0s03.jaist.ac.jp> 
	<1993Oct15.111202.13670@t-server.t.u-tokyo.ac.jp>
Mime-Version: 1.0
Date: Sat, 16 Oct 1993 00:07:02 GMT
Lines: 116
Xref: galaxy.trc.rwcp.or.jp fj.mail:1981
X-originally-archived-at: http://galaxy.rwcp.or.jp/text/cgi-bin/newsarticle2?ng=fj.mail&nb=1981&hd=a
X-reformat-date: Mon, 18 Oct 2004 15:18:22 +0900
X-reformat-comment: Tabs were expanded into 4 column tabstops by the Galaxy's archiver. See http://katsu.watanabe.name/ancientfj/galaxy-format.html for more info.


On 10/15/93(20:14) tss@a.u-tokyo.ac.jp (SASABE Tetsuro) wrote
in <1993Oct15.111202.13670@t-server.t.u-tokyo.ac.jp> (fj.mail:2156/etlss2):
 |$BMn$AIU$$$FFI$s$GM_$7$$$s$@$1$I$J$!!#!#!#!#!#!#!#!#!#(B
 |
 |In article <MORIOKA.93Oct15132428@is15e0s03.jaist.ac.jp>
 |    morioka@jaist.ac.jp ($B<i2,(B $BCNI'(B (MORIOKA Tomohiko)) writes:
 |
 | |  8 bit $BF)2a$K$7$F!"F|K\%m!<%+%k$KJD$8$k$3$H$K$9$l$P!"$=$N:?9qBN@)$K$*(B
 | |$B$$$F!"LdBj$O5/$-$J$$$G$7$g$&!#(B
 |
 |  $B$I$&$7$F:?9q$J$s$G$9!)(B

$B:?9q$7$J$$$3$H$K$O!"9q30$X$NN.=P$r?)$$;_$a$i$l$J$$$+$i$G$7$g$&!#(B
$B$=$N$h$&$J%K%e!<%9!?%a%$%k$r0lN3$?$j$H$b9q30$X=P$5$J$$$H$$$&$N$O!"(B
$B:$Fq$@$H$O;W$$$^$9$1$I!#(B


 | |  8 bit $BF)2a$N>e$G!"(BISO-8859-* $B$d$i(B Shift-JIS $B$d$i!"3F9q$N(B EUC $B$d$i(B 
 | |Unicode $B$d$i$,Ht$S8r$&Lu$G$9$+!)(B
 |
 |  $B$=$NDL$j$G$9!#$@$+$i!"3F9q$I$N8@8l$,N.$l$k$+$OLdBj$K$7$F$$$^$;$s!#$=(B
 |$B$l$,$I$&$7$F:?9q$K$J$k$N$+$7$i!)(B

$B:{It$5$s$,$I$&46$8$k$+$G$O$J$/$F!"%$%s%?!<%M%C%H$N@$3&Cf$,$=$l$r<u(B
$B$1F~$l$k$+$I$&$+$,LdBj$J$o$1$G$9$M!#(B
$B$$$:$l$K$7$F$b!"$I$NJ8;z%;%C%H$N$I$N$h$&$J%(%s%3!<%G%#%s%0$G$"$k$+(B
$B$,H=JLITG=$J$h$&$JJ8;z%3!<%I$,%X%C%@Cf$K5vMF$5$l$k$3$H$O!"L5$$$H;W(B
$B$$$^$9$1$I!#(B


 | |$B:{It(B> $B!VHiFy$J8=>]!W$G$7$g$&$+!)(B
 | |
 | |  $B$3$l$O!"(BRFC-822 $B$KBP1~$7$F$J$+$C$?$@$1$NOC$G!"(BMIME $B$N@UG$$G$O$J$$$H(B
 | |$B;W$$$^$9!#(BMIME header $B$r;H$&$h$&$K$J$C$FI=LL2=$7$?$@$1$NOC$G!"A0$+$i!"(B
 | |$BJ#?t9T$N(B From: $B$OG'$a$i$l$F$$$?$N$G$9$+$i!#(B
 |
 |  $B$7$+$7!"7k2LO@$H$7$F$O?7$?$JBP1~$,I,MW$K$J$C$?$o$1$G$9!#$=$NE@$G$O(B
 |$B!V(BMIME $B$J$iBP1~:Q$_!W$H$$$&$N$O@5$7$/$"$j$^$;$s$h$M!)(B MIME $B%X%C%@$,N.(B
 |$B$l$k$h$&$K$J$C$F$O$8$a$F5$IU$$$?$N$G$9$+$i!#(B

$BD9$$%U%#!<%k%I$N@^$jJV$7(B(folding$B$O(B)$B!"(BRFC822$B$N6K$a$F4pK\E*$G=EMW$J;E(B
$BMM$G$9!#$3$l$KBP1~$7$F$$$J$$$h$&$J(B MTA/MUA $B$O!"$9$0$KD>$9$Y$-$@$H;W(B
$B$$$^$9!#JL$K(BMIME$B$r;H$o$J$/$F$b!"(BCc$B$J$I$G$OD9$$9T$ONI$/5/$3$j$^$9!#(B
RFC822$B$K=`5r$7$F$$$J$$(B MTA/MUA$B$G!"(BRFC822$B=`5r$N%a%C%;!<%8$,LdBj$r5/(B
$B$3$7$?>l9g!"@UG$$O$=$N(B MTA/MUA$B$K$"$j$^$9!#(B

RFC822$B$K=`5r$7$F$$$J$$%a%C%;!<%8$rN.$7$F!"(BRFC822$B=`5r$N(BMTA/MUA$B$GLdBj(B
$B$r5/$3$7$?>l9g!"@UG$$O$=$N%a%C%;!<%8$rN.$7$??M$K$"$j$^$9!#(B
$BNc$($P%X%C%@$K(B8bits$B$rDL$7$?$$$H;W$&$J$i!"$=$N$h$&$K(BRFC821/822$B$N3HD%(B
$B$rDs0F$7$F!"%$%s%?!<%M%C%H$N>5G'$rF@$J$1$l$P$J$j$^$;$s!#(B

$B<B:]!":#$^$5$K(BRFC822$B$N%P!<%8%g%s%"%C%W:n6H$,(Bietf-smtp$B$G?J$a$i$l$F(B
$B$$$^$9$+$i!"2?$+$r<gD%$9$k$J$i:#$,%A%c%s%9$G$7$g$&!#(B

  [RFC1425] SMTP Service Extensions
  [RFC1426] SMTP Service Extensions for 8bit-MIMEtransport

ietf-smtp$B$N(BML$B$X$N;22C$O!"(Bietf-smtp-request@dimacs.rutgers.edu$B$G<u$1(B
$BIU$1$F$$$^$9!#!J$\$/$O;22C$7$F$J$$$G$9$,!K(B

[RFC1426]:
>3.  Framework for SMTP Extensions
...
>          (2)  The SMTP content is sent in the SMTP DATA protocol unit
>               and has two parts: the headers and the body. The headers
>               form a collection of field/value pairs structured
>               according to RFC 822 [2], whilst the body, if structured,
>               is defined according to MIME [3]. The content is textual
>               in nature, expressed using the US ASCII repertoire (ANSI
>               X3.4-1986). Although extensions (such as MIME) may relax
>               this restriction for the content body, the content
>               headers are always encoded using the US ASCII repertoire.
>               The algorithm defined in [4] is used to represent header
>               values outside the US ASCII repertoire, whilst still
>               encoding them using the US ASCII repertoire.
...
>   [1] Postel, J., "Simple Mail Transfer Protocol", STD 10, RFC 821,
>       USC/Information Sciences Institute, August 1982.
>
>   [2] Crocker, D., "Standard for the Format of ARPA Internet Text
>       Messages", STD 11, RFC 822, UDEL, August 1982.
>
>   [3] Borenstein, N., and N. Freed, "Multipurpose Internet Mail
>       Extensions", RFC 1341, Bellcore, Innosoft, June 1992.
>
>   [4] Moore, K., "Representation of Non-ASCII Text in Internet Message
>       Headers", RFC 1342, University of Tennessee, June 1992.
>
$BCm!'(BRFC1341,1342$B$O(BRFC1521,1522$B$GCV$-49$($i$l$^$7$?!#(B


 | |  $B:?9q$9$k$J$i$=$l$GNI$$$N$G$7$g$&$M!#$=$7$F!"F|K\8l0J30$OK\Ev$KJ8;z2=(B
 | |$B$1$9$kLu$G$9!#(B
 |
 |  $B$@!&$+!&$i!"$I$&$7$F:?9q$J$s$G$9$+!)(B

$B3$30$KLBOG$r$+$1$J$$$?$a$G$9$M!#(B



 |  $B$=$&$$$&8@$$J}$r$J$5$k$J$i!"5U$K$*J9$-$7$?$$$3$H$,$"$j$^$9!#(BMIME $B$K(B
 |$B=>$C$F%(%s%3!<%I$7$F$*$1$P!"F|K\8l$rM}2r$7$J$$2$JF$N?M$G$"$C$F$b!V%V%m%C(B
 |$B%/!W$5$l$k$3$H$J$/M}2r$G$-$k$N$G$9$+!)(B $B$^$5$+!*(B

MIME$B$K%(%s%3!<%I$7$F$$$J$$$H!"(Bsendmail$B$J$I$N(BMTA$B$GM}2r$G$-$J$$$3$H$,!"(B
$BBh0l$NLdBj$@$H;W$$$^$9!#$^$?!"Nc$($P?t$+9q8l$GJ;5-$7$F$"$C$?$H$-$K!"(B
$BFI$_<j$NFI$a$k!?I=<($G$-$kJ8;z$@$1$rI=<($9$k$H$+$b$G$-$k$o$1$G$9!#(B
$B$^$"!">-MhE*$K$O!V$3$l$OF|K\8l$@$+$i1Q8l$KK]Lu$7$FI=<(!W$_$?$$$J$N$,(B
$B<+F02=$5$l$k$HAGE($G$9$1$I$M(B(^_^)

$B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!(B @ @
$B(=(!(!(B $B(!(=(!(B $B(=!!!!(B  $B!?!?!@(B^^$B!!(B( - )  {$B%5!<%S%9!"<+J,$N$?$a$K(B}
$B(7(!(B++$B:4F#!w#E#T#L!!!?!!(B876m$B!@(B _<   >_$B!!!!!!!!!!!!!!!!!!!!!!!!(B..
$B(?(!(!(B $B!!(?!!(B $B(?(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(!(B (- @)$B";(B $B(!(!(%(B
$B!z(BMIME$B%(%s%3!<%@(B/$B%G%3!<%@H/GdCf!z(Betlport.etl.go.jp:pub/mime/mimehead.tar.Z
