– Setup IEM & configure
– Install DKIM instead Domainkeys (old sign). We can’t have both signs with Exim.
– SPF optimization
– Mail EHLO optimization
– Interspire Database optimization
– Exim optimization (optimized for delivery to major ISP’s)
– Secure the server
– Remove Anti Abuse Mail Headers that are auto-added by Exim & cPanel
– Add 3 new custom headers in replacement of the standard Exim Anti-Abuse Headers
– Modify the Mail client From
– Sender ID Optimization (We are already registered)
– Optimize system for delivery (rdns testing, spam databases testing, IP reputation testing, etc)
– Make sure that we are not an open relay
– Configure MX records properly
