Welcome to the Archived, Readonly Zimbra Collaboration forums. Here’s the place where we talked about all things related to Zimbra email products. Registrations and postings are disabled here.
Be sure to visit https://www.zimbra.com/forums to start new discussions and to find the latest answers to questions being asked.
Why is it not possible to drag appointments in 'Month' view?
Seeing the same thing; filed a bug report here:
Bug 63571 – Drag 'n Drop of Existing Appointments In Calendar Fails Intermittently
Hope that helps,
Thank you Dr.!