A short description is available at the following URL:
http://web.os2power.com/yuri/EximInternetMailer
Exim can be used in parallel with an existing mail server to delivery mail, so you can test it while still running your current mail software.
While Exim binaries are already uploaded, Courier daemons will follow soon (they just need to be repackaged).
From:
Source: OS2VOICE.org