, .
Internet :
MUA (Mail User Agent - )
MTA (Mail Transfer Agent - ).
MUA - ,
,
. ,
,
,
, .
- Pine
,
- qmail
.
MTA, MUA 8- . , , , , - "" 8- . , 7- ASCII. MIME (MultimedIa Mail Encoding - )
MIME , . MIME, (. mime).
, . :
, . : KOI8-R, IANA koi8-r. cp1251 - IANA: windows-1251.
(, ( ) ISO-8859-5. Windows ISO-8859-5 - .)
: ,
( ,
- - Outlook)
. windows-1251
iso-8859-1
, US-ASCII
UNKNOWN-8BIT
.
~/.procmailrc
( ,
~/.procmailrc
):
:0 fHw * ^Content-Type: *text/plain; *charset="?(iso-8859-1|US-ASCII|UNKNOWN-8BIT)"? | formail -i "Content-Type: text/plain; charset=windows-1251"
emacs , , Emacs. ( Emacs Emacs XEmacs).
~/.elm/elmrc
:
CHARSET=koi8-r
~/.pinerc
/usr/lib/pine.conf
( pine).
character-set=koi8-r
Pine
,
quoted-printable
.
enable-8bit-nntp-posting enable-8bit-esmtp-negotiation
, , pine
.
.
: win koi pine
.pinerc
(
pine)
display-filters=_CHARSET(iso8859-5)_ /usr/local/bin/icat, _CHARSET(utf-8)_ /usr/local/bin/ucat, _CHARSET(windows-1251)_ /usr/local/bin/wcat
icat
, wcat
ucat
iconv
-from - -to - recode
.
- ,
( ).
~/.muttrc
:
set charset=koi8-r set allow_8bit
,
.
, ,
-
,
~/.muttrc
.
cp1251,
KOI8-R
~/.muttrc
.
set charset=windows-1251 set send_charset=koi8-r set allow_8bit
sendmail 8, , ,
~/.muttrc
set use_8bitmime
"" (MTA),
. sendmail
, qmail
, smail
, exim
,
.
8, sendmail
8
. -
EightBitMode
7
mailers
/etc/sendmail.cf
.
"Sendmail. Operation and
Installation Guide" .
sendmail
8 .
8
base64 .
8 ,
, .
. - , , .
Emacs ( Emacs XEmacs) pine ( pine), - tin
MM_CHARSET
KOI8-R mm_charset
~/.tin/tinrc
mm_charset
~/.tin/tinrc
KOI8-R ( "" MM_CHARSET)