:blackhole: the catchall, it goes no place, no notice will be received by you.
exim =
www.exim.org
mailscanner =
www.configserver.com
If you do not have ssh access to the server, you wont be able to install configserver anyways, as well if you dont have WHM access to the server, you cant change exim configurations either to add the RBL's.
If you do have root & ssh access to the server, i would suggest if you do not know linux commands, do NOT be doing this on your own.