Setpref is not working or is it a bug or something?

[Ingo Klöcker]

On Sunday 30 November 2014 10:46:40 gnupgpack at on.yourweb.de wrote:
> >> I am sorry, all my replies are sent to gnupg-users at gnupg.org only,
> > 
> > Yes, that's the right procedure.
> > The problem Peter mentioned is caused by the fact that your replies lack
> > the  message headers (In-reply-to and References) that usually link
> > replies to the replied-to messages.
> 
> Yes, that's true, SMTP-Filter is running for outgoing mails:
> http://lab1.de/Central/Software/Internet/E-Mail/SMTP-Filter/
> 
> It deletes for security/privacy reasons:
> IN-REPLY-TO:
> MESSAGE-ID:
> ORGANIZATION:
> REFERENCES:
> THREAD-INDEX:
> THREAD-TOPIC:
> X-MAILER:
> X-MIMEOLE:
> X-MSMAIL-PRIORITY:
> X-Relayed-By: GPGrelay
> 
> Hidden header 'In-Reply-To: <1CD78A.547AEDEA.0002 at machine>':
> IN-REPLY-TO and REFERENCES for example include ... at machine, which is always
> the same... This is not wanted because of the possibility of tracking cross
> over the web ("who posts which content...")

IMHO that's nonsense. Those headers do not identify your machine. Those 
headers reference the messages you reply to, so if anything then those headers 
identify the machine of the person you reply to.


> So, how to deal with this behavior?

I suggest that you stop deleting the In-reply-to and the References header.


> Keeping subject untouched seems to be enough for identifying and associating
> to thread, isn't it?

Yes. At least for email clients that also thread messages by the Subject 
header. But even those mail clients usually don't know which original message 
your reply belongs to and therefore those mail clients will put your message 
below an arbitrary other message in the thread. This makes reading longer mail 
exchanges with multiple participants (e.g. like here on this mailing list) a 
PITA.


Regards,
Ingo
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