Si esteu usant el format mbox per a les vostres carpetes, no serà possible el que useu un altre client de correu diferent mentre s' executa el & kmail;. amb el mutt també poden haver- hi problemes encara que s' executin tots dos alhora. En aquest cas us recomanem usar el format maildir, aquest us hauria de resoldre tots els problemes.
If you're using the mbox format for your folders it is not possible to use a different email client while & kmail; is running. With mutt there may also be problems even if both programs are not running at the same time. We recommend to use the maildir format in this case, this should solve all problems.