I'm struggling to concisely define my issue for the subject. I'm using Thunderbird 38.3.0 for Ubuntu with Zimbra 8.6.0 FOSS edition build 1153 on the backend. What is happening is that some, not all of my messages are not being shown as they appear in the message list. i.e. In my Inbox, I...

We're experimenting with the IM for use in our offices and for clients in their offices.Does the XMPP (jabberD) service that Zimbra runs support video chatting?We have text messaging and audio working but cannot do video conferencing, keeps crashing. We're using Empathy/Telepathy on Ubuntu 1...