Re: rfc2231 implementations?

Am Mittwoch, 19. Juli 2006 10:38 schrieb Arnt Gulbrandsen:
> So far, we have two known writers (kmail and apple mail) and four
> known readers (eudora/mac, teamware, kmail, apple mail).

FWIW, Thunderbird (Mozilla Thunderbird 1.0 (X11/20041207)) created the 
following non-RFC-2231 headers:
Content-Type: application/pdf;
 name="=?ISO-8859-1?Q?kr=FCzzbr=FCr=2Ewpd=2Epdf?="
Content-Transfer-Encoding: base64
Content-Disposition: inline;
 filename="=?ISO-8859-1?Q?kr=FCzzbr=FCr=2Ewpd=2Epdf?="

So, at least by default Thunderbird doesn't create RFC 2231. But a quick 
test shows that Thunderbird seems to understand it. So knownReaders 
+= "Thunderbird".

> Ingo Klöcker writes:
> > Am Dienstag, 18. Juli 2006 17:29 schrieb Arnt Gulbrandsen:
> >>  I can't remember ever seeing a 2231-encoded message in the wild.
> >> Are there implementations? Is there hope that a message using 2231
> >> syntax will be understood by anyone?
> >
> > Not sure what exactly you mean, but KMail does, of course, create
> > 2231-encoded headers for attachments with non-ASCII names.
>
> The question could be rephrased as: Can I assume that an attachment
> name encoded according to RFC 2231 will be correctly decoded by the
> recipient?
>
> > Though, much to my dismay, KMail also has a Microsoft-compatibility
> > mode for creating those headers in Microsoft's RFC-violating
> > format.
>
> I suspect that means "no, you can't assume that".

Luckily, I can't check whether Microsoft's products do nowadays 
understand RFC 2231.

Regards,
Ingo

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