There are some cases where you want to ignore the configured MX record in order to deliver e-mails for a domain and instead deliver them to a preconfigured server. A very common situation where you want to do this is when you provide advanced antivirus and antispam solutions to your clients. In those cases you want any mail delivered for a domain to be forwarded to you advancev antivirus/antispam server. Below we will show you how to do this and forward any mail for cphelp.gr and all it's subdomains to the server superantispam.cphelp.gr instead of the MX record that shows mail.cphelp.gr.

1. Login to your server through ssh.
2. Create the file /etc/hubbed_hosts .
3. Insert the following line to that file (the first column is the domain to forward and the second column the MTA to forward the domain):
   
   # Domain      MTA
   *.cphelp.gr     superantispam.cphelp.gr
   
4. Save the file and exit SSH.
5. Login to WHM.
6. Under "Service Configuration" click on "Exim Configuration Editor".
7. Click on "Advance Editor"
8. Find the config section "ROUTERS CONFIGURATION".
9. Enter the following lines in the first text box:
   
      hubbed_hosts:
        driver = manualroute
        domains = "${if exists{/etc/hubbed_hosts}\
                  {partial-lsearch;/etc/hubbed_hosts}\
                  fail}"
       
        route_data = ${lookup{$domain}partial-lsearch{/etc/hubbed_hosts}}
        transport = remote_smtp
   
10. Save the configuration and wait for exim to restart.
11. Test you new exim configuration.