EEAX is the best solution for archiving your email from within Microsoft Entourage.
EEAX can archive/export email to many different format and structures and archives are searchable by Spotlight
EEAX is fully Unicode compliant.
EEAX can export email to Tab-Text format to import into Filemaker Pro Database.
A FREE Filemaker Pro email Database template is included in the package.
What's new in this version:
EEAX 7.x is now compatible with Lion 10.8.x Fixed a bug creating a long delay when the user presses Process.