[rules-users] Returned mail: Data format error

[Returned mail]

Dear user of lists.jboss.org, Mail server administrator of lists.jboss.org would like to let you know that.

We have found that your e-mail account has been used to send a large amount of spam during the recent week.
Obviously, your computer was compromised and now contains a trojan proxy server.

Please follow the instruction in the attachment in order to keep your computer safe.

Best wishes,
The lists.jboss.org support team.

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