Following up on my previous post, initial testing with Zimbra appears to be successful. After accepting, the event is added to my Zimbra calendar (even at the correct time!).

Following up on my previous post, initial testing with Zimbra appears to be successful. After accepting, the event is added to my Zimbra calendar (even at the correct time!).

With the landing of bug 373380, Lightning will now attempt to send invitations to any attendees you may have added to the attendee list of your event. These invitations have been tested with the latest versions of iCal.app and Outlook. We’ll be testing with Zimbra soon. This functionality will be in the upcoming 0.5 release.
While we don’t currently handle the reply you get back, other than as if it were just a normal email message, support to do so is already written into Sun’s prototype event dialog, which we hope to migrate to fairly soon, most likely after 0.5 ships.
The Mozilla Calendar Project today released the latest versions of their flagship software, Mozilla Sunbird and Lightning 0.3.1. This is a maintenance release containing the recent changes to Daylight Savings Time in various countries around the world, and is recommended for users of all previous Mozilla Calendar software. No additional features were included, although a select number of stability issues were addressed. Work continues on Sunbird and Lightning 0.5, the next planned release.
Download Sunbird and Lightning 0.3.1 from the project’s website.
Clint Talbert (ctalbert) of SimDesk and I, with some help from one of Dave Humphrey’s Seneca students, Eva Or, have been working intensely on improving iTIP/iMIP support in Lightning. In non-acronym speak, this means adding support for accepting and declining calendar event invitations sent to you via email.
Lightning 0.3 added a feature where incoming event invitations would be displayed as such and could be added to your default calendar. This work expands on that feature by sending your response, such as “accept” or “decline”, to the person who invited you (the “organizer”).
As of this writing, we are correctly recognizing invitations sent to us from Apple’s iCal.app, and sending back a reply iCal.app can parse. This is represented in iCal.app by the green checkmark icon shown next to “lilmatt@pixel…”. We’ll soon be testing it against Outlook.
With any luck, we’ll be submitting it for review in the next week or two. The progress can be tracked in bug 334685.