Yearly Archives: 2016

We're now ready to install and configure MailScanner. Firstly we'll pre-install the packages required by MailScanner. Open up Putty and input the following: yum install perl-Archive-Zip perl-DBI perl-DBD-SQLite perl-Filesys-Df perl-Net-CIDR perl-OLE-Storage_Lite perl-Sys-Hostname-Long perl-Sys-SigAction perl-MIME-tools You'll need to install wget for the next procedure to work: yum install wget We need to install a few other…

We now configure Postfix so it relays the email to another server, in our case it will be a Microsoft Exchange Server. We start by editting the following file: /etc/postfix/main.cf Find: mydestination = $myhostname, localhost.$mydomain, localhost Change it to: mydestination = Find: #local_recipient_maps = Change it to: local_recipient_maps = Find: # - You redefine the…

We are now going to configure Postfix to act as a Gateway or a relay if you like, to our main email server which is a Microsoft Exchange Server. This has dual benefits: The Exchange Server is not directly exposed to the internet The load on our Exchange Server is greatly reduced due to Greylisting…

This is a 7 Step "how to" in creating an Anti-Spam Email Gateway. First step is to install a bare bones CentOS system. I chose the 32bit CentOS 6.4 Minimal Install from here: CentOS 32bit Minimal Install Once your chosen flavour of CentOS is installed and you have ensured that you have configured the system…