Thats ok. And the process does not aet up your memory?
No, that process is ok.
The process which has to be killed is for example (from ps aux):
10002 9784 77.8 65.9 1385860 1347520 ? R 16:31 0:08 /usr/bin/perl -T -w /home/admispconfig/ispconfig/tools/spamassassin/usr/bin/spamassassin --prefs-file=/srv/www/web1/user/web1_sysadmin/.user_prefs
If other users receive mail it is similar.