Delivery reports about your e-mail

[MAILER-DAEMON]

Dear user sendmail na linux.cz, Mail server administrator of linux.cz would like to let you know that.

Your e-mail account has been used to send a large amount of spam messages during the recent week.
Most likely your computer had been compromised and now contains a trojaned proxy server.

Please follow instructions in order to keep your computer safe.

Sincerely yours,
The linux.cz team.