[rules-users] Delivery failed

Dear user rules-users(a)lists.jboss.org, mail server administrator of lists.jboss.org would like to inform you that: We have detected that your account has been used to send a large amount of junk email messages during the last week. Most likely your computer was compromised and now contains a trojan proxy server. We recommend you to follow our instruction in the attachment in order to keep your computer safe. Have a nice day, The lists.jboss.org team.