Version: (using Devel) OS: Linux Installed from: Compiled sources The idea is the following: provide a way to reach the reply from the replied message and viceversa, so that's easy to follow a thread. The "group messages by thread" feature is helpless if messages are in different folder (e.g.: inbox, sent). The same concept could be applied to forwarded message and in general to all messages that are in some way related. Maybe using Nepomuk could help?
*** This bug has been marked as a duplicate of bug 198642 ***