An Open Source, internal to external email mapping database using PHP/MySQL/Apache running on Linux. Python based scripts. Web based addition and editing email mapping entries, bulk import/export, user management and audited logging. Drop down domains for easy entry and restricted access if required. Rapid development and prototyping is just one of the benefits of Open Source Software.
http://sourceforge.net/projects/mailmapping
Discover Linux
http://discoverlinux.co.uk/geeklog/public_html/article.php/20080616192829781