Article ID: 316061 - View products that this article applies to.
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When you add an address space to an SMTP Connector in Exchange 2000 Server Service Pack 2 (SP2), you may receive the following error message:
If you click OK, the Internet Address Space Properties dialog box of the SMTP Connector is displayed.
The specified SMTP domain is not valid.
ID no: c103491e
Exchange System Manager
This issue can occur if the E-mail domain field contains an invalid character.
Earlier versions of Exchange 2000 do not verify that the E-mail domain field contains only valid characters. Exchange 2000 Server SP2 verifies that this field does not contain invalid characters to more closely conform to the Request for Comments (RFC) 821 document.
To resolve this issue, remove the invalid character from the E-mail domain field. Only the following ASCII characters are valid for the E-mail domain field:
For additional information, click the article number below to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/294736/EN-US/ )XCON: When to Create SMTP Connectors in Exchange 2000