- You set the system locale of a Microsoft Exchange Server 2003 server to a non-English language in a mixed Microsoft Exchange Server 2010 and Exchange Server 2003 environment. For example, you set the system locale of an Exchange Server 2003 server to Japanese.
- You select an external recipient as the forwarding address for an Exchange Server 2010 user mailbox.
- The Exchange Server 2010 user’s display name contains double-byte character set (DBCS) characters.
- An Exchange Server 2003 user sends an email message to the Exchange Server 2010 user.
Additionally, the following error message is logged in SMTP log on the Exchange Server 2010 server:
Article ID: 2641753 - Last Review: Apr 16, 2012 - Revision: 1