I would like to buy Zimbra Network Edition for one year but after that i don't want to have to renew my license forever. I am a system integrator so i don't want to pay for support every year for using this software in my company but the guy at Zimbra said to me that if i don't renew my license i will revert back to the opensource edition and lose my Outlook connector function. Man M$ should be advise that they are not the hungriest software seller in the world because i know another company that is worse. It's not an antivirus software i am buying that i have to renew every year it's a replacement for my Microsoft Exchange server and with M$ i didn't have to renew my license each year.
So now it's just an opinion !