MailScanner/sendmail load balancing

Daniel Maher daniel.maher at
Fri Nov 10 17:06:48 GMT 2006

> -----Original Message-----
> From: mailscanner-bounces at [mailto:mailscanner-
> bounces at] On Behalf Of Vlad Mazek
> Sent: November 10, 2006 10:57 AM
> To: MailScanner discussion
> Subject: MailScanner/sendmail load balancing
> Does anybody use Linux Virtual Server with MailScanner/sendmail?
> Any recommendations / pitfalls?
> If not, do you recommend / use something else to spread the load across
> multiple MailScanner servers?

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.            300     IN      MX      10
;;     3600    IN      A     3600    IN      A     3600    IN      A

Done and done - it works like a charm, and it is fantastically easy to set up and maintain.

 °v°  Daniel Maher
/(_)\ Administrateur Système Unix
 ^ ^  Unix System Administrator
Sentio aliquos togatos contra me conspirare.

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