DCOM errors when sending w/Exchange

Hi all,

Running SBS2003 w/Exchange. New installation. Client is randomly getting emails bounced back. Sometimes they make it through, sometimes not – to the same legit address.

I checked the error log and get the following error:
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Event ID: 10009

DCOM was unable to communicate with the computer mx-a065a23.pas.sa.earthlink.net using any of the configured protocols.
———————————————-

This is supposed to be going to a legitimate recipient(I have tested this address several times).

I have never seen this type of error and cannot find anything in Microsoft regarding this.

I don’t understand what DCOM has to do with SMTP or exchange communicating with other servers.

HELP!!

Nate