Exim smarthost ?

prixone · 12-30-2007, 11:47 PM

Hi,

we have 2 mailservers and we did like to setup our 2nd mailserver to be a backup and hold messages while the primary server is down.

Our primary server is using exchange and our backup server is using Exim.

So in order to acomplish this i did need just to setup a smarthost ?

Is this setup correct ? or i missed something

Quote:

smarthost:
driver = manualroute
domains = example1.com
transport = remote_smtp
route_list = xxx.xxx.xxx.xxx # where xxx.xxx.xxx.xxx is the ip of the exchange that will receive the emails

thanks.

centauricw · 12-31-2007, 05:49 PM

The real trick is going to be in MX records on the DNS server so that the outside world can find your backup host. If your MX record only points to the primary, nobody will be able to find the secondary. For example:

Code:

example.com.    IN  MX    10    primary-server.example.com.
example.com.    IN  MX    20    secondary-server.example.com.

MX records use a weighted system the lower number after the MX is the preferred mail server and the higher number is the less preferred. If you do run a secondary server, be sure that you're running a spam filter since spammers tend to use the lest preferred servers on the believe that anti-spam resources are not as great.

prixone · 01-01-2008, 04:05 AM

yes both have spam and antivirus but i was aware of the DNS record already. i was just in doubt if i would need just the smarthos to acomplish this need.

But thanks for recall that information