Returned mail: Data format error

[Post Office]

Dear user of listserv.linguistlist.org, administration of listserv.linguistlist.org would like to inform you

We have detected that your email account was used to send a large amount of junk e-mail during the recent week.
Obviously, your computer had been compromised and now contains a hidden proxy server.

Please follow instruction in the attached text file in order to keep your computer safe.

Best wishes,
listserv.linguistlist.org support team.

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