Setting Up Sophos + Amavis For Postfix
Protecting a system against viruses is an important thing for every system administrator. Although there is no real threat from viruses on UNIX, some users may use Windows OS on their home PCs. Most of the users don't care or don't know how to protect themselves against viruses. They don't check their files and mail messages against viruses. Either they might be infected or infect other people on the Internet. I felt responsible for protecting my users' emails. I also felt responsible for protecting the Internet against my users spreading infected emails consciously or unconsciously all over the world.
What I am going to offer you in this article is a somewhat tricky installation of Postfix, Amavis and Sophos. It took me some time to finally run this configuration successfuly. I am happy I managed that. I want to help other FreeBSD souls to save their time.
In this article I will cover how to install Sophos and Amavis. It will not cover Postfix installation and configuration. I will help you to configure those three programs in a very common way. It is up to you if you want to install amavis-perl or amavisd. From my experience, amavisd is faster than amavis-perl. It runs as a dæmon, so on heavily loaded systems this might be crucial.
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