The mailing list for listmasters using Sympa

[Matt Taggart <address@concealed>]

Gaël writes:
> I've been using sympa for a few lists and I'm trying to find a avoid
> duplicate messages in some situations.
> 
> If I send a mail to a mailing-list, and someone answers, and the
> "reply_to_header" is set to "all", I will get the mail twice, one sent to
> my address, and the other to the list, forwarded then to my address.
> 
> Is there a way to avoid this behavior ?

The proposed way to solve this is setting the Mail-Followup-To header

http://cr.yp.to/proto/replyto.html

but not all MUAs support it.

> This list is used to communicate between people inside a collective, and to
> be contacted by external people.
> So the ideal behavior would be :
> - When we communicate only with subscribed people (so only to the list
> address), the reply-to is set and forced to the list uniquely
> - When somebody else sends a message, the reply-to is set and forced to the
> list AND the sender

Interesting idea. I think if sympa was going to do munging it should also 
use Mail-Followup-To (rather than reply-to).

-- 
Matt Taggart
address@concealed