[ale] Is there an open source product similar to Exchange?

[James Sumners]

You are questing for the Holy Grail. Some would argue that such a
product would be the death of Windows in the business place.

-- 
James Sumners
http://james.roomfullofmirrors.com/

"All governments suffer a recurring problem: Power attracts
pathological personalities. It is not that power corrupts but that it
is magnetic to the corruptible. Such people have a tendency to become
drunk on violence, a condition to which they are quickly addicted."

Missionaria Protectiva, Text QIV (decto)
CH:D 59