In that case, setting Word's option to update fields before printing, should take care of most issues.

Unfortunately, there's no automatic setting for a general updating of fields. One could add macros to automatically update them when the document is opened, for example, but the people you send the emails too might, understandably enough, be leery of such documents because of the potential security risks.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]