MailScanner/sendmail load balancing

[Alex Neuman]

Daniel Maher wrote:
> In our environment, we have a small cluster of incoming mail servers, each running Postfix & MailScanner.  We balance these via DNS, in the same way that Google, Yahoo, and many other email players do: our MX points to a single hostname (mail01), which in turn has A-records for each of the machines in the cluster.
>
> ubisoft.com.            300     IN      MX      10 mail01.ubisoft.com.
> ;;
> mail01.ubisoft.com.     3600    IN      A       216.98.56.133
> mail01.ubisoft.com.     3600    IN      A       216.98.56.138
> mail01.ubisoft.com.     3600    IN      A       216.98.56.132
>
> Done and done - it works like a charm, and it is fantastically easy to set up and maintain.
>   
Do you also cluster the message stores? POP/IMAP?