No client will help, because the mailing list erases the original
Reply-To header, so it's impossible for the MUA to determine it.
Some people, e.g. I, even don't set up a Reply-To.
That's the from the list's headers of your mail:
"Date: Fri, 6 Feb 2015 08:14:59 -0300
From: Hugo Osvaldo Barrera
To: "Discussion about the Arch User Repository (AUR)"
Subject: Re: [aur-general] Email Notifications of new AUR
orphaning/deletion/merging method
Reply-To: "Discussion about the Arch User Repository \(AUR\)"
Sender: "aur-general" "
If I push Claws' "Sender" button, the mail only would be send to
Hugo Osvaldo Barrera .
If I use Claws' "Reply" button, the mail only is send to AUR general.
If I push Evolution's group reply button, the mail is only send to the
list. If I push Evolution's reply button, Evolution asks me, if I want
to reply to you or to Arch general.
In addition, both MUAs allow to reply to all.
So I at least have got two MUAs installed that are able to handle this
"issue".
Regards,
Ralf