June 2007
Setting Up Postfix As A Backup MX | HowtoForge - Linux Howtos and Tutorials
by cameln this tutorial I will show how you can set up a Postfix mailserver as a backup mail exchanger for a domain so that it accepts mails for this domain in case the primary mail exchanger is down or unreachable, and passes the mails on to the primary MX once that one is up again.
December 2005
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(2 marks)