« subject » of an out-of-office message? Check the server's locale/language settings.
Also refer to Microsoft Knowledge Base article 270018 Subject line in out-of-office messages is in a language other than English. That refers to such an issue in reference to messages in English (but the « Applies To » section does not include Exchange Server 2003).
Do you have comments on this Ask the Expert Q&A? Let us know.
Related information from SearchExchange.com:
This was first published in July 2007