One of the most important things you can do for your mail server is install MailScanner. It will help detect incoming and outgoing spam. This will prevent your IP from getting blacklisted, keeping the server clean. Installing SpamAssassin and ClamAV will add another layer of defense against these issues.   Steps to install SpamAssassin, MailScanner, ClamAV 1)  Install all dependency packages on the server using the below command. # yum install -y yum-utils gcc cpp perl bzip2 zip unra   [...]

Read More