Problems with ddclient

[Stephen Touset <stephen@touset.dyndns.org>]

In using ddclient, I've been trying to edit the configuration to allow 
me to have a backup mx. After reading the help and man pages, I added 
the following lines to my /etc/ddclient.conf file:

backupmx=yes
mx=smtp.domain.tld

I'm currently using the dyndns2 protocol to make the changes. However, 
even after adding this into the configuration file, a check on dyndns 
(as well as using dig) confirms that no secondary mx has been set. I've 
tried reversing the order of the options as well as using an IP address 
rather than DNS alias, all to no avail.

Does anyone have a solution for this?

Stephen Touset