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outbound message failure

By suhjeng ·
Server: MS Exchange 5.5
Sp: Sp4
OS: NT 4.0 SP6a

When users send an outbound message to, the message can't pass throught Internet Mail connector. Systems administrator receives a notification: Outbound Mail Failure message which stated:
"The following recipients did not receive the attached mail. Reasons are listed with each recipient: <.> System Administrator MSEXCH:IMS:Organisation:Site:IMC_server 0 (000D06BF) No Proxy for recipient"

However users got no problem in sending emails to other domains successfully. I've checked the setting of my MS Exchange server including the routing part (properties of connection tab) but is not mentioned. I'm puzzled...

Anyone can help?

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outbound message failure

by rlevesque In reply to outbound message failure

Chances are that either's MX record is incorrect or that they have made a change in their network to which emails sent to them can't get through for some reason. It may be even they blocked you thinking you are a spammer. Basically, when something like this happens, its their end thats the cause, not yours.

If you have a number for their network people, you may want to call them and let them know.

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