High CPU usage now and than for sendmail(many different users at the same time)

directdennis

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May 27, 2016
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Every now and then my 5 minute load average peaks above 15, when i monitor the process monitor i see many sendmail processes from different users at the same time for a few seconds(some pid's use up to 66% cpu)....
But when i monitor the mailqueque nothing is send... the mailcount for the specific users(resellers) is not increasing....

Nothing shows op in the .php/php-mail.log neither.

Where can i begin to tackle this problem.....(i'm affraid that i'm being hacked):(
Please HELP!!!

See top dump below(some times there are around 15 of these procs with all diffrent pid's and users):

/usr/local/php53/bin/php-cgi53 -d sendmail_path='/usr/sbin/sendmail -t -i -f e******@*********' -d sendmail_from="e******@*********" -d open_basedir="/home/e*****be/:/tmp:/var/tmp:/usr/local/lib/php/:/usr/local/php53/lib/php/:/usr/local/php55/lib/php/" -d mail.log="/home/e******be/.php/php-mail.log"
 
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