This is a quick guide (by jervis) on how to do an install and basic setup of exim on CentOS. This is not meant as a fully inclusive guide but it will get you on the way. Following this you should get a working exim install.
I will assume you have built a CentOS 4 / 5 Server, have yum working and have logged in as root.
yum update
Install exim and mail switching tools
yum install exim
yum install system-switch-mail
Switch your MTA & set exim to start on boot
system-switch-mail
service sendmail stop
service exim start
chkconfig exim on
chkconfig sendmail off
Add a root alias, eg: “root: me@example.com”
vi /etc/aliases
You may also wish to add some config to your routers section like this, if you want to relay through a smart host.
vi /etc/exim/exim.conf
Then add this before the “dnslookup:” section.
to_smart_host:
driver = manualroute
domains = ! +local_domains
transport = remote_smtp
route_list = “* mail1.example.com:mail2.example.com;”
Restart exim
service exim restart
To test, send an email
echo “test” |mail -s “$HOSTNAME” me@example.com
Then you can flush the Exim Que and watch the log like this
exim -qff ; tail -f /var/log/exim/main.log
Good luck!
