Setting up relay host for zimbra <p>I would like to configure Smtp for my mail server to send out mail to external server. I followed <a href="http://wiki.zimbra.com/wiki/Outgoing_SMTP_Authentication" rel="nofollow">this link</a> and confused of what exactly the relay mail should be, <code>zmprov ms server.domain.com zimbraMtaRelayHost mailrelay.example.com</code> I did not know what should be use to replay for <code>mailrelay.example.com</code>. If my mail domain is <code>mail.domain.com</code> so can I set up for relay host as <code>wiki.domain.com</code>?</p>