What is LEI?
LEI stands for Lotus Enterprise Integrator. It allows Lotus Notes data and RDBMS systems to swap data.
LEI Homepage: http://www.lotus.com/products/product4.nsf/wdocs/leihomepage
What's new in LEI 7? http://www-128.ibm.com/developerworks/lotus/library/lei7
Moving attachments to LEI without using script: http://www-128.ibm.com/developerworks/lotus/library/LEI-attachments/index.html
LEI uses a Lotus Notes server and connectors to connect to different data sources, some connectors are free with LEI, some require premium business partner status and are extra.