Version: 1.10.90 (using Devel) OS: Linux Installed from: Compiled sources undo on kmail will undo the last action performed by it, but not by the users, i.e. if you are casually reading your emails, then delete one, want to bring it back, you just use undo... But if you're downloading emails at the same time, and filters are being applied to them, undo will undo the last action, and that may not (and most certainly wont) be the deleting of that email, and end up doing and undo on a filter. Originally reported on https://launchpad.net/bugs/300957
it works for me with r889451(which will get 4.1.81). i deleted a mail, then downloaded new mails over pop3, they got into a folder for a the mailinglist by a custom filter. then i did undo, the deleted mail is back, no more undos possible (so i cant undo the filter stuff)
This is closed downstream, so I think it would be appropriate to close it here too. If it can be reproduced in a current KDE version, please reopen.