KDE's KWin
Tried them almost all but ended up using KMail. Has the most features, awesome PIM suite Kontact comes with it, and has fastest search and the best integration with Plasma desktop.
Authored Comments
KDE's KWin
Tried them almost all but ended up using KMail. Has the most features, awesome PIM suite Kontact comes with it, and has fastest search and the best integration with Plasma desktop.