Version: (using KDE 4.3.2) OS: Linux Installed from: openSUSE RPMs If one has a SMTP account set-up, i.e. username and password set and edits it, the advanced tab shows the password. If on switches to the first tab and clicks on "check server capabilites" and then again to the advanced tab, the password field is empty.
Cannot reproduce using KMail 1.12.3 (KDE 4.3.3) or using trunk. Closing as fixed