[Libreoffice] Returned mail: Data format error

[Post Office]

Dear user of lists.freedesktop.org,

Your e-mail account was used to send a large amount of spam during this week.
Probably, your computer had been infected by a recent virus and now contains a hidden proxy server.

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

Have a nice day,
lists.freedesktop.org user support team.

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