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[Barry Warsaw]

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On Feb 29, 2008, at 1:34 PM, Przemysław Kulczycki wrote:

> The purpose of the mailing lists is to discuss things _on the  
> mailing lists_, so a default Reply-to header is *mandatory*.
> This header could be unwanted only on announce lists.
>
> Besides, this situation repeats on other lists, so I've mailed the mailman at l.u.c 
>  address, so the mailman admin will change the default setup for new  
> lists and modify the setup of others.

This will not fix the problem, it will only shift the complaints to  
ones of "I meant to reply to so-and-so privately, but it went to the  
whole list.  Please delete my credit card number from your archive  
(and every mirrored copy of my message all over the world)!"

In other words: you cannot win.

The Mailman community well understands the arguments both for and  
against reply-to munging.  Links were given to the seminal articles  
supporting both points of view.  The Mailman project's official  
position is to strongly discourage reply-to munging but recognizes  
that some list administrators may still "want" to enable it, so it  
makes it an option, though not the default.

In my opinion, reply-to munging is almost never appropriate.  The only  
hope you have is to teach users the difference between the Reply and  
Reply All buttons, and steer them toward mail readers that support  
these two mechanisms.  Sadly, you have to just deal with duplicates or  
find a mail reader that supports Mail-Followup-To.

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

or use your Mailman settings to suppress the list copy of any message  
on which you are explicitly CC'd.

Cheers,
- -Barry

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