Two mail servers, need help with dns configuration for the backup one

Posted by user92231 on Server Fault See other posts from Server Fault or by user92231
Published on 2011-08-20T20:11:20Z Indexed on 2012/09/10 21:40 UTC
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dns

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kerio

I need to run a redundant backup mail server in case the main one goes down.

The settings in GoDaddy look something like the following:

A (Host)

Host    Points to

@       ip address of mail1 41.x.x.x
mail1   ip address of mail1 41.x.x.x
mail2   ip address of mail2 196.x.x.x

MX

Priority    host         points to

10               @           mail1.mydomain.com
20               @           mail2.mydomain.com

When mail1 goes down, mail2 is able to get emails. I can access it through the browser with no problem, but I want my users to able to pop3/smtp as well without changing anything in their outlook. I dont want any impact to the users when mail1 is down.

Also, I'm using the windows server DFS to keep both folders of the mails in sync. Is this the right way, or should I be using something else?

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