OT: Load Balancing & redundancy using Multiple A records

shuttlebox shuttlebox at gmail.com
Fri Nov 23 16:23:20 GMT 2007

On Nov 23, 2007 5:08 PM, Joost Waversveld <joost at waversveld.nl> wrote:
>  Ya, maybe, but the DNS does not look at the load of the machines.
>  If you're mailservers are all exactly the same with hardware, etc. then it
> will be a good solution. Otherwise you will get problems.

Not really, if one implements throttling in the MTA a denied
connection means the next MX will be tried so if one server gets
exhausted quickly the more powerful one will get more traffic by using
the fault tolerance part of the protocol. Pretty cool to get both load
balancing and fault tolerance without either effort or cost.


More information about the MailScanner mailing list