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smtp conflict?

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crabby117

IS-IT--Management
Sep 22, 2003
106
US
I have a server which is bouncing all messages I'm trying to send to it.

The following recipient(s) could not be reached:

recipient@domain.com on 11/8/2007 10:19 AM
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<senders.domain.com #5.7.1 smtp;550 5.7.1 Unable to relay for recipient@domain.com>

The relay settings in Exchange (2003) appear to be correct, however, I have the luxury of being able to look at several other servers to compare the settings. The most obvious thing I've noticed is that in the IIS (6.0) Administrator, the "faulty" server has an icon on the left column for Default SMTP Server whereas all the other Exchange servers I've seen do not. Moreover, the settings in the IIS listing for SMTP server do NOT match the settings in Exchange. The settings in the IIS Default SMTP server seem to "attach it", for lack of a better phrase, to the Inetpub directory, not to Exchange. (The server is hosting a web site.) Should I get rid of this listing in IIS or should I leave it and just get all of the configurations to match those of Exchange? I'm not sure why it's there when it's not there for every other Exchange server I've seen. I think it popped up when I went to Add/Remove Programs > Windows components > App Server > IIS > SMTP Service. But again, the three other servers I looked at also had this service installed.
Thanks.
 
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