Version: 1.9.7 (using KDE 3.5.8, Kubuntu (feisty) 4:3.5.8-0ubuntu1~feisty1)
Compiler: Target: i486-linux-gnu
OS: Linux (i686) release 2.6.20-15-generic
Currently it only possible to open messages for editing when they are saved in the drafts folder. This option should at least also be possible for mails in the 'sent mail' folder. It is a regular situation that an e-mail doesn't arrive and has to be resended or an already sent e-mail should be rewritten in a slightly modified way or has to be send to different recipients.
Personally I even would like to have this feature for all e-mails in all folders. This is the way Thunderbird does it.
*** This bug has been marked as a duplicate of 55374 ***