Introduction to ClamSMTP
In order to scan all e-mail passing through the server, a software interface is required between Postfix and ClamAV. The interface we are going to use is ClamSMTP. The following introduction from the ClamSMTP site (http://memberwebs.com/stef/software/clamsmtp/) describes the SMTP virus filter as:
ClamSMTP is an SMTP filter that allows you to check for viruses using the ClamAV antivirus software. It accepts SMTP connections and forwards the SMTP commands and responses to another SMTP server. The 'DATA' email body is intercepted and scanned before forwarding. ClamSMTP aims to be lightweight, reliable, and simple rather than have a myriad of options. It's written in C without major dependencies.
Postfix is designed to allow ...
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