Being a Microsoft dude I have very limited knowledge of all things Linux. I currently run an exchange Box Internally for my small busssiness and I want to use a Linux cloud server to clean my mail ...

I am looking into a low cost resolution to attachment filtering and content filtering of email coming in and going out of our Exhange server. I am pretty familiar with Linux and this get a Linux box ...

Security researchers have discovered a new critical vulnerability in the OpenSMTPD email server. An attacker could exploit it remotely to run shell commands as root on the underlying operating system.