I am sure this has been debated and even discussed in the past. But as a small team of 5 people .. we are really struggling to manage shared calendars / sysned meetings across devices / systems using free mail server postfix/Dovecot.
Basically what i am asking is, if there is a documented and well working way to have the above in the virtualmin arena. there are lot of information available on the internet but they are either incomplete or totally are refering to solutions like Zimbra, etc.
Experience people, please pitch in.. I will be saving so much time and effort, if i can get a synced meeting / shared calendar functionality.. with open source solution.