Hi!, I’m a KDE user and receiving some spam like any concurrent Internet user. Sometimes I was looking at Kontact menus and wow!, the Tools have a two interesting entries: Anti-Spam Wizard and Anti-Virus Wizard.
Well, the Anti-Virus Wizard seems to have no sense, but can be useful while you are forwarding mail and the Anti-Spam Wizard rocks. Here you have the steps to use Anti-Spam tools under Kontact.
First, install some Anti-Spam filters known to Kontact.
# portinstall -PP bogofilter-qdbm # portinstall -PP p5-Mail-SpamAssassin
Then, restart Kontact (not the entire operating system like Micro$oft Winbloat) and launch the Anti-Spam Wizard and select Bogofilter and SpamAssassin X.X (Perl) (select the daemon SpamAssassin X.X (Daemon) if you share your computer with more people and you have it running. By default both, Bogofilter and SpamAssassin have the learning rules options activated.
Now, I have three anti-spam layers, the filters on my mail providers and the filters running on my workstation with a 101% of the spam filtered, since these filters blocks some spamming domains.
Try them, and have fun :D