After having used Lotus Notes, Sametime, and Skype in a corporate environment for years, I'm thinking how could anything not be better than the P.O.S. known as Lotus Notes/Domino/Sametime??? There are whole websites dedicated to the documentation in every detail of how bad Lotus Notes sucks:
Damien Katz: 70 Reasons Lotus Notes Sucks
Lotus Notes Sucks
Lotus Notes: Survival of the Unfittest
Hell, one guy even bothered to take the time to put a video on YouTube stating the fact:
"Lotus Notes Sucks!"
Of course, Google Apps is an alternative, but for a real corporate environment where the top execs are p-p-p-p-paranoid, there's a definite drive to keep systems like this exclusively in-house to completely control data in all corporate communications. Even though I really think Notes/Domino is a huge pile of crap, I can't say I am at all a fan of MS Outlook/Exchange given its many flaws and the fact that it won't even run on Linux/UNIX like Notes/Domino will.
So, I will be posting an objective comparison between Notes/Domino and Zimbra/Postfix soon since Zimbra/Postfix experience is actually in real demand these days while demand for Notes/Domino experience is literally non-existent. Stay tuned...