Re: Subject encoding/decoding

["Albrecht Dreß" <albrecht dress arcor de>]

----- Original Nachricht ----
Von:     Peter Vopatek <peter vopatek syvab se>
> Subject: =?iso-8859-1?Q? Din_serviceanm=E4lan?=
[snip]
> My question is: Is it a bug and if so, at which side ?
> (I have not checked in RFC's what is correct or not.)

This header is broken, i.e. there is a bug in the sending MUA.  Quoted from RFC 2047 [1]:

<quote>
2. Syntax of encoded-words

   An 'encoded-word' is defined by the following ABNF grammar.  The
   notation of RFC 822 is used, with the exception that white space
   characters MUST NOT appear between components of an 'encoded-word'.

   encoded-word = "=?" charset "?" encoding "?" encoded-text "?="

   charset = token    ; see section 3

   encoding = token   ; see section 4

   token = 1*<Any CHAR except SPACE, CTLs, and especials>

   especials = "(" / ")" / "<" / ">" / "@" / "," / ";" / ":" / "
               <"> / "/" / "[" / "]" / "?" / "." / "="

   encoded-text = 1*<Any printable ASCII character other than "?"
                     or SPACE>
</quote>

Cheers, Albrecht

[1] http://www.ietf.org/rfc/rfc2047.txt

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