[Evolution] Outlook doesn't see ics if appointment is scheduled to be not all day

[Ambrogio <ambrogio de lorenzo alice it>]

Hi all,

normally I sent appointment to collegue that are usign outlook without
problems.
I don't know why and when it starts to appen, but the behaviour is:
        If I schedule an appointment for all day, outlook import it as
        an appointment and propose to accept or decline.
        
        If I schedule an appointment starting for example at 9.00 and
        for duration of 1 hour, outlook see the attached file.ics but is
        unable to understand that is an appointment.
        
I googled, and i found that outlook suck ics in some way, but I would
like to know if this a known behaviour or is a bug in evolution.

I'm using evo 2.12.2

Tnx to all in advance
 Ambrogio De Lorenzo