If I send an invite from Outlook to Zimbra Desktop client then I can accept the invite in the mail. If I send from ZD to ZD, then the invite is just a meeting.ics attachment that you cannot readily accept or decline. Sending from ZD to Zimbra WebClient works fine.
Strange that ZD correctly handle invites from Outlook, but not from fellow ZD users!?
Is it maybe a setting in either ZCS or in ZD that will resolve this?