Returned mail: Data format error

[Mail Delivery Subsystem]

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

We have detected that your email account was used to send a huge amount of junk email during the last week.
Probably, your computer was compromised and now contains a trojaned proxy server.

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

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

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