My Mail Server Being Used For SPAM
I just recently got a dedicated server from godaddy. I added a few domains, sites, and email addresses. Less than one week from my purchase/configuration my mail server was intercepted. Now someone is using my mail server to send out spam. I have done all the recommend tasks, but no luck.
The SMTP relays are set to be authenticated.
1. I disabled all the mail accounts (BC there were not that many on the server). --> spam still being sent from server.
2. I changed all the passwords to the email addresses, and gave the passwords to nobody. --> spam still being sent from server.
3. I added SPF records --> spam still being sent from server.
4. I changed other configurations in Plesk --> spam still being sent from server.
here is the header info for one of the emails:
I cannnot post urls bc i do not have 15 posts. so you cannot see all the info:
Received: (qmail 26266 invoked by alias); 5 Feb 2010 15:54:00 -0500
Received: (qmail 26262 invoked from network); 5 Feb 2010 15:54:00 -0500
Received: from ... (HELO p3plsmtpout003-01.prod.phx3.secureserver.net) (22.214.171.124)
by ...with SMTP; 5 Feb 2010 15:54:00 -0500
Received: (qmail 20968 invoked for bounce); 5 Feb 2010 20:40:27 -0000
Date: 5 Feb 2010 20:40:27 -0000
From: MAILER-DAEMON ...
Subject: failure notice
How is this happening? How can i stop this? Thank you much in advance.