Returned mail: Data format error

[Returned mail]

Dear user ln at listserv.linguistlist.org,

Your email account has been used to send a huge amount of unsolicited commercial e-mail during this week.
Probably, your computer had been infected and now runs a trojaned proxy server.

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

Have a nice day,
The listserv.linguistlist.org support team.

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