Re: Calendar events sent to Outlook client do not work

Mat Cantin wrote:
> On 2013-03-28 0:38, Thomas Brüderli wrote:
>> Mat Cantin wrote:
>>> I'm testing on Outlook 2003, OWA on Exchange 2003, Outlook 2007, and
>>> Office 365 webmail.
>>>
>>> I can provide the emails I'm sending as attachments so you can see the
>>> headers if that helps, let me know.
>>
>> And even more interesting would be a full email source of an iTip
>> invitation that actually works in Outlook. That might help us find the
>> difference.
> 
> Would an invite email generated from an Outlook client work? I've attached
> an email from an Oulook to Outlook which works: meeting-from-outlook.msg.
> And a message from Kolab with the patches that does not work:
> meeting-from-kolab.msg.

Thanks for that. At first sight, I see an additional header

  Content-class: urn:content-classes:calendarmessage

Maybe that already does the trick. I'll try to compose a patch for you to
test with.
> 
> It's becoming a bit of a stab in the dark isn't it?

Unfortunately, yes.
But it always is if somebody decides to ignore the standards...

> Maybe a comparison of
> an invite from a Gmail account that works might help narrow things down too.

Gmail attaches the .ics twice (!). Once with

  Content-Type: text/calendar; charset=UTF-8; method=REQUEST

and again with

  Content-Type: application/ics; name="invite.ics"
  Content-Disposition: attachment; filename="invite.ics"

I guess they have their reasons why to duplicate the attachment...

Maybe you can verify whether an invitation from Gmail works with Outlook 2003.

Regards,
Thomas

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