Hi, I setup a new install of Plesk 9 about a month ago on a new server and restored from a bckup of our old Plesk 8.6 server. I configured plesk to use postfix. It seems that some spammers are trying to use us as a relay, and postfix is putting the messages in the deferred queue. The mail queue in mail settings is filled with messages that look like this: Received: from vmdy.yahoo.com.hk (vmdy.yahoo.com.hk [126.96.36.199]) by with Microsoft SMTPSVC(5.0.2195.6824); Tue, 17 Feb 2009 23:27:57 +0600 Message-ID: <email@example.com> Date: Tue, 17 Feb 2009 12:30:57 -0500 From: "Â¤Ã¨Rock" <firstname.lastname@example.org> Reply-To: "Â¤Ã¨James" <email@example.com> To: firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, wsl2 firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org Subject: Â¼Ã¯Â¼zÂ¦p^Ã…SÂ¨Ã…Â·wÂ°Ã•' Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="--NextPart_x6dcp_rf_wm_o1xhvx2ilf_bj3z" If I run postsuper -r ALL I am told that anywhere between 30000 and 200000 messages have been requeued. Nagios is complaining that the server's SMTP seems to be flapping, I'm seeing postfix segfaults in dmesg, and my load averages are up in the 40s-50s. I've tried updating to Plesk 9.0.1 but the issue persists. How do I fix it?