[CalendarServer-users] iMIP replies and Lighning interoperability (Update)

Markus Stürmer markus.stuermer at informatik.uni-erlangen.de
Fri May 15 14:08:50 PDT 2009

Hi Helge!

Yes, basically it was your thread I was talking about, although it  
might not have come clear.

Both parties had good arguments there, I think. Why changing a  
standard-compliant implementation, only because others don't implement  
it correctly? Why porting software to Linux and insisting on a certain  
approach when there is no client supporting it? CalDAV may just be too  

By the way, a workaround could be to disable CalDAV scheduling via  
inbox altogether, and make DCS use iMiP also for known local users.  
iMiP seems to work fine in both, iCal and Lightning. Is there a way of  
doing that?

Unfortunately I also don't expect sunbird/lighning to support DCS's  
urn schemes soon. It is just not common enough, and they are already  
short on developers. :-(


Am 15.05.2009 um 22:20 schrieb Helge Heß:

> On 15.05.2009, at 10:40, Markus Stürmer wrote:
>> Finally, I gave up for the moment. It seems scheduling with DCS 
>> +Lightning just does not work as it should.
>> As long as Lightning is used by the organized of an event,  
>> everything works nicely (after enabling caldav scheduling). But  
>> when getting an invitation, Lightning is just not able to recognize  
>> the user in the attendee list. This seems to be due to the urn- 
>> Scheme used by DCS, because hacking the ics-file in the attendees  
>> inbox can fix that. (There has also been a discussion on the dev- 
>> list - most caldav servers seem to use email addresses instead of  
>> urn-s).
>> Although mentioning only Lightning, I also tried Sunbird (latest  
>> release and nightly builds). After all it seems this is more a  
>> client-side problem.
>> Are there any Linux clients that work with DCS and also support  
>> scheduling at all?
> No, there are none. I tried to raise the issue over here:
> http://www.nabble.com/UIDs-as-ATTENDEE-IDs,-please-fix-that-td23334605.html
> Thanks,
> Helge

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