Re: [exim] Auto-reply and foreign characters

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Author: Magnus Holmgren
Date:  
To: exim-users
CC: Clive McDowell
Subject: Re: [exim] Auto-reply and foreign characters
Clive McDowell wrote:
> Folks,
>
> are there any known problems with the autoresponder if there are non-english characters in the subject header? I've just seen
> the failure -
>
> Expansion of "${if def:h_Subject: {Autoreply: $h_Subject:} {Auto-response}}" in uservacation
> transport contains non-printing character 207
>
> The actual subject header was -
>
> Subject: =?iso-8859-7?Q?FW=3A_=CF=E9_=E1=EB=EB=E1=E3=DD=F2_=F3=F4=E7_=E8?==?iso-8859-7?Q?=E7=F4=E5=DF=E1?=
>
> There appears to be a double '=' character in there so I think this is due to a broken client.
>
> Thanks,
>
> Clive McDowell
>
> Information Services
> The Queen's University of Belfast
>
>


The double '=' is the end of one encoded-word and the beginning of the
next, but RFC 1522 (http://www.faqs.org/rfcs/rfc1522.html) section 5
requires that each encoded-word be separated from adjacent encoded-words
or "text" by linear whitespace (whitespace between two encoded-words are
to be ignored when decoding), so clearly the client is broken.

--
Magnus Holmgren