[cobalt-users] How do you setup cobalts to act as secondary mailservers?

[Greg Hewitt-Long <cobaltusers@xxxxxxxxxxxxxxxxxxx>]

ok, I'm clear on the MX issue, if I setup a 2ndary MX records to an additional server, then it's relatively understood that if the primary MX isn't accepting mail (down, or overloaded), then mail trips over to the 2ndary MX records - that's NOT that difficult to understand).

But can I setup additional RAQ servers to accept mail and relay to the primary, so that OUR network accepts the mail for the client and continues to try and deliver it?

Basically, for each client domain, I'd like to setup at least one additional MX on a different RAQ, so that all clients on RAQ1 are have a secondary of RAQ2, all clients on RAQ2 have a secondary on RAQ3, and all on RAQ3 have a secondary on RAQ1.

Or, at the least, all machines in data-center A have secondary MX records pointing to data-center B.

I'm fairly sure that if I just setup an MX to the machine, and then put aliases or mail servers for the domain in the email server setup (via the GUI), then we'll get "user not known" type errors, so I'm fairly sure there must some something a wee bit more than this.. .obviously I don't want to create an open relay, but I do want to create 2ndary mailservers for domains we host only.

thanks for your help

regards

Greg Hewitt-Long
-- 
http://www.webyourbusiness.com/
Providers of E-Commerce Software &
Web Design Consultancy and Services.
PH: (970) 266-0195   FAX: (970) 266-0158