Exchange 2003 configuration when using a backup mx provided by isp
we have one exchange 2003 server mail.example.com sending out and receiving mail. In DNS we have only on MX record 10 pointing to mail.example.com. We have know a backup mx record mail.isp.com (20) on our request, but it seems not to work. I get the impression that no mail will be queued or passed via mail.isp.com. Do we need to adapt or add some configuration to our Exchange 2003 environment?
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