[Dovecot] Sieve vacation with russian subject

[Axel Luttgens]

Le 8 juil. 09 à 12:04, Nikita Koshikov a écrit :

> Hello list,
>
> I have noticed that sieve vacation action breaks some non-english  
> letters in the subject.
> I tested with russian language, if subject contains letters from  
> specific diapason russian alphabet, the message received with  
> unreadable subject, but text in the body with the same letters looks  
> ok.
> Here is example of full subject header, it contains russian alphabet:
> Subject: абвгде�?жзийклмноп�?�?�?�?�?�? 
> �?�?�?�?�?�?�?�?�?�?
>
> Maybe this headers will be usefull:
> MIME-Version: 1.0
> Content-Type: text/plain; charset=utf-8
> Content-Transfer-Encoding: 8bit
>
> .dovecot.sieve file looks correct, here is it:
> require ["vacation"];
> # rule:[test]
> if anyof (true)
> {
>        vacation :days 1 :addresses ["user at domain.com"] :subject  
> "абвгдеёжзийклмнопрстуфхцчшщъыьэюя"  
> text:
> Тестовое русское сообщение(Test russian  
> message).
> ;
> }
>
> I'm running dovecot-1.1.16 with dovecot-sieve-1.1.6 and  
> managesieve-0.10.6.
>
> Please tell, is it possible to fix this ?

I don't know whether dovecot-sieve is supposed to do the conversion  
automatically, but it is sure that an RFC822 header MUST be in US- 
ASCII (so as to be 7bit-clean).

The required encodings are described in:
	http://www.rfc-editor.org/rfc/rfc2047.txt
For example, a subject header with the french word "Résistance" could  
be encoded as:
	Subject: =?iso-8859-1?Q?R=E9sistance?=

Could you try by inserting the encoded subject line directly in the  
config file and see what gives?
On the other hand, perhaps does sieve provide the needed tools itself;  
someone?

Axel