Version:            (using KDE 4.4.2)
Installed from:    openSUSE RPMs

When I write a mail and then hit the Send button, kmail hangs forever. Up to now I have tried a few things to find out what circumstances are required to make that happen.

My findings so far, but do not count on them 100%:

- stopping and starting akonadi seems to help

- I was not logged in to the same account in between, e.g. as in Bug #228612

- probably this only happens if at least one person can only be found on the LDAP address book, here I have to make further tests

If kmail is working once, the problem did not occur again until I exited kontact/kmail.

I will start kontact/kmail with core ulimits set to unlimited and shoot at kmail using a signal causing a core dump, may be this will give me more information.