I am trying to setup a backup smtp server.
I have one exchange server running with mail.mydomain.com.au
I have just contacted my web host provider, who I wanted the emails to go to if the exchange server was down, Here is their response.
You MX is pointing to "mail.mydomain.com.au" and the A record for "mail.mydomain.com.au" is pointing to "22.214.171.124" So I assume that the exchange server is named "mail.mydomain.com.au" If the exchange server was named something else it would be very easy, since that is not the case you will need to edit qmail to set up an alternate mail server name and then set your MX records to point to it with a priority higher than 10. Take a look at http://qmail.org/
Does anyone have an ideas on how to do this.