I'm using Zimbra Desktop. It is connected to e-mail server (which is not product from Zimbra portfolio, probally Postfix) using IMAP protocol. When I create new entry in calendar (in local folders), I cannot send invitation to attenders - this filed is disabled in new calendar entry window How can I send invitation (preferably in VCALENDAR format) in this situation? I don't understand this limitation For example, Outlook can send invitation in the same situation. Maybe there is some zimled available for this purpose.

Thanks for advice,