Hello, i'm new with cPanel. So, yesterday, we moved new server. Now, when i checked Mail Queue Manager, i see too many mail, i made try delete, but today, i receive too much again. I Think its about for "Cron" You can see photo; And this is my e-mail on queue. Code: This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: email@example.com The mail server could not deliver mail to firstname.lastname@example.org. The account or domain may not exist, they may be blacklisted, or missing the proper dns entries. ------ This is a copy of the message, including all the headers. ------ Return-path: <email@example.com> Received: from root by sunucu.domain.net with local (Exim 4.82) (envelope-from <firstname.lastname@example.org>) id 1X6wKL-0006HP-BF for email@example.com; Tue, 15 Jul 2014 09:35:01 +0300 From: firstname.lastname@example.org (Cron Daemon) To: email@example.com Subject: Cron <root@sunucu> root sh -c "sync; echo 3 > /proc/sys/vm/drop_caches" Content-Type: text/plain; charset=UTF-8 Auto-Submitted: auto-generated X-Cron-Env: <LANG=en_US.UTF-8> X-Cron-Env: <SHELL=/bin/sh> X-Cron-Env: <HOME=/root> X-Cron-Env: <PATH=/usr/bin:/bin> X-Cron-Env: <LOGNAME=root> X-Cron-Env: <USER=root> Message-Id: <E1X6wKL-0006HP-BF@sunucu.domain.net> Date: Tue, 15 Jul 2014 09:35:01 +0300 /bin/sh: root: command not found How can i fix this problem?