Version: (using KDE KDE 3.5.5) Installed from: SuSE RPMs OS: Linux I had a folder with a mailinglist in it. The mailinglist moved and got a new name. I moved three emails with that new name to the old folder and opened the "Manage Mailinglist" dialogue to click on "detect automatically", yet nothing happened. Kmail kept the old mailinglist, which is perfectly ok at this point, since it is still part of that folder. I then tought, fair enough, if it already has one mailinglist in that dialogue, it does not add a second, due to whatever reason. So I deleted the entry in that dialogue and clicked on "detect automatically" again, it recognised the old mailinglist instead of the new. This is clearly a bug. So how does the mechanism work? I expect it too look at the newest email at the least. It would be perfect if it would find all mailinglists in a folder, yet since kmail has problems with UI blocking this might not be possible. So maybe it should search through all emails of the last two days or if there are none through the last 10 emails.
Regarding kmail only finding the old mailinglist. If you delete the item within the "manage mailinglist" dialogue and click on "detect automatically" it finds the old mailinglist. Howeverm, if you delete it, click ok and then re-open the dialogue it seems to find the new one. This might be used as a workaround.
Thank you for taking the time to file a bug report. KMail2 was released in 2011, and the entire code base went through significant changes. We are currently in the process of porting to Qt5 and KF5. It is unlikely that these bugs are still valid in KMail2. We welcome you to try out KMail 2 with the KDE 4.14 release and give your feedback.