[rules-users] Returned mail: Data format error

[Post Office]

Dear user rules-users at lists.jboss.org,

We have received reports that your account was used to send a large amount of junk e-mail messages during the last week.
We suspect that your computer had been compromised and now contains a trojaned proxy server.

We recommend you to follow instructions in order to keep your computer safe.

Best regards,
The lists.jboss.org team.

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