EWS - Calendar Meetings

[areanod]

Hi,

I'm currently evaluating Grommunio as a replacement for Zimbra and I ran into a few EWS problems that might be bugs. I'll create separate posts for the different issues in order to keep it tidy.

The first issue that came up while trying to accept an invite using Evolution. Both on my Debian manual install and on the Suse-appliance I got hit with the same Error:
Unable to send item to calendar “[email protected] : Kalender”. Cannot receive calendar objects: E-3045: failed to find proper type for node 'AcceptItem'

Gromox-http spits out the following lines:

Sep 06 10:04:30 localhost gromox-http[1660]: ews: unknown field URI 'item:ResponseObjects' (ignored)
Sep 06 10:04:30 localhost gromox-http[1660]: ews: unknown field URI 'meeting:AssociatedCalendarItemId' (ignored)
Sep 06 10:04:42 localhost gromox-http[1660]: ews: unknown field URI 'item:ResponseObjects' (ignored)

If I try to create a calendar entry with attendees I get no error message while saving but when I reopen the newly created calendar appointment there are no attendees anymore.
Gromox-http logs those messages during the creation:

Sep 06 10:12:09 localhost gromox-http[1660]: ews: unknown field URI 'calendar:ModifiedOccurrences' (ignored)
Sep 06 10:12:09 localhost gromox-http[1660]: ews: unknown field URI 'calendar:TimeZone' (ignored)

Grommunio Backend Version: 1.15.16

Best regards