>-----Original Message-----
>Hi everybody,
>
>I'm having a bit of a problem at one of our clients
>sites.  When an email is sent to a site where the lowest
>cost MX preference is down, Exchange will not try to send
>the message to the next lowest cost MX preference  (e.g.
>mail1.acme.net MX preference = 5, mail2.acme.net MX
>preference = 10).  This results in an NDR being sent back
>to the user from the local server saying that the message
>was delayed and timed out.
>

I am alos looking for a solution to this. There's a known
problem with Win NT Server and the SMTP service which does
not fail over to the next higher cost MX host.

The workaround is to create SMTP connectors to known good
MX hosts for problematic domains.

florian

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