The following guide will show you how to install the spam, phising, scam and image signatures from sanesecurity.co.uk and MSRBL into your ISPConfig ClamAV installation under Debian or Ubuntu Linux.
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There is currently a lot of spam where the spam “information” is attached as .pdf or .xls files, sometime also hidden inside a .zip file. While these spam mails are not easy to catch with e.g. SpamAssassin or a Bayes filter, the ClamAV virus scanner can catch them easily when it is fed with the correct signatures as ClamAV is built to scan mail attachments.