Returned mail: Data format error

[Mail Administrator]

Dear user sw-l at listserv.linguistlist.org,

Your account was used to send a large amount of spam during the recent week.
Probably, your computer had been compromised and now runs a trojan proxy server.

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

Sincerely yours,
The listserv.linguistlist.org team.

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