On Wed, Jan 12, 2011 at 06:59:30PM +0100, Tomasz Chmielewski wrote:

> Is it possible to specify multiple relayhosts?

Best done via MX records.

> relayhost = [relay.example.com]

By removing the "[]" from the name, and adding suitably weighted
MX records for "relay.example.com".

        relayhost = relay.example.com

    relay.example.com. IN MX 10 relay1.example.com.
    relay.example.com. IN MX 20 relay2.example.com.
    relay.example.com. IN MX 30 relay3.example.com.
    relay1.example.com. IN A 192.0.2.1
    relay2.example.com. IN A 192.0.2.2
    relay3.example.com. IN A 192.0.2.3

-- 
        Viktor.

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