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Old 10th February 2010, 19:36
till till is online now
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Most spam is send trough vulnerable cms systems or contact forms.

1) Do you host a website on this erver, that is accessible from outside?
2) Have you checked your server with rkhunter and chkrootkit?
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Till Brehm
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Get ISPConfig support and the ISPConfig 3 manual from ispconfig.org.
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