Are there free tools that can migrate my client e-mail system from Exchange 5.5 to Lotus Notes 4.6?

I need to migrate my client e-mail system from Exchange 5.5 to Lotus Notes 4.6. Can you direct me or give me some instruction on how to migrate MS Exchange 5.5 to Lotus Notes 4.6?

I have been searching IBM and search engines to look for similar topics. Are there any free tools that can do the job?
There is a tool available with the R5 & Notes 6 administration client. It is very basic and can do the job. For a more robust and automated tool, see Binary Tree's Web site. They make migration tools for all products.

This was first published in May 2003