[kdepim-users] meeting invitations to Exchange resources and Outlook users

[Pascal Vandeputte]

Hi,

Last month I posted the message below to kdepim-users, but it got stuck for a few 
days because mailman found it suspicious.

I did not receive any response and now I'm silently hoping that's because my message 
was already buried under more recent mail once it got through :-)

If not, I guess I'll head over to bugs.kde.org and file it.

Best regards,

Pascal



On Friday 28 February 2014 15:06:02 Pascal Vandeputte wrote:
> Dear list,
> 
> After trying numerous things I just cannot send a meeting invitation from
> KOrganizer via KMail in a way that Exchange/Outlook 2010 will understand.
> 
> * I have tried all checkboxes in KMail's "Misc - Invitations" options in
> various combinations
> * I have tried forcing it to be sent as utf-8 (encountering this weird bug
> by the way: https://bugs.kde.org/show_bug.cgi?id=147924
> 
> No results however:
> * people receiving the invitation always get a mail with a .ics attachment.
> Outlook does not detect it as an invitation (and shows no UI for
> accept/decline etc.)
> * when adding a resource (meeting room) to the attendees, it never responds
> (i.o.w. Exchange does not recognize the invitation and silently deletes the
> mail)
> 
> I can live with attendees manually having to open the .ics. However, it's
> impossible to book a meeting room from Kontact.
> 
> Meanwhile Thunderbird + Lightning does manage to do it somehow. I see a
> number of differences in the sent e-mail, which I don't know how to emulate
> using KMail:
> 
> * multipart/alternative message body containing 2 parts: the description
> (text/plain), and the vcalendar text (text/calendar). This is the first part
> of the whole multipart/mixed mail (which is hence containing this
> multipart/alternative first, and next the .ics file attachment as the second
> part (application/ics)).
> KMail is multipart/mixed only, with a text/plain message body and
> text/calendar .ics attachment.
> 
> * Content-transfer-encoding: 8BIT for all parts (I can get KMail to use the
> utf-8 charset, but encoding is always quoted-printable.
> 
> * KMail uses "cal.ics" as attachment filename, Lightning uses "invite.ics"
> 
> I found this old post interesting, apparently some of the "Misc -
> Invitations" checkboxes were aimed at Exchange 5.5 (1997):
> http://lists.kde.org/?l=kde-pim&m=110379611900121
> 
> I'm using KDEPIM version 4.12.2. Anything left to try?
> 
> Best regards,
> 
> Pascal
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