rana@rana-Inspiron-5447:~$ kmail
sonnet.core: Missing trigrams for languages: QSet("he_IL", "en_AU", "en_CA", "en_GB")
*** KMail got signal 11 (Exiting)
*** Dead letters dumped.
QSocketNotifier: Invalid socket 9 and type 'Read', disabling...
QSocketNotifier: Invalid socket 11 and type 'Read', disabling...
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = kmail path = /usr/bin pid = 2820
KCrash: Arguments: /usr/bin/kmail
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0

[1]+  Stopped                 kmail
rana@rana-Inspiron-5447:~$