Projeqtor meeting invitations

Hi,
PQ: 9.5.5

After reinstalation of our PQ server on new platform meetings invitations are not delivered to meetings organiser.
Means, If user X create meeting in which he also participate then meeting invitation sent by email will not reach him.
All other persons will obtain invitations.
We are using Lotus Notes as email system.
Before move of PQ server it was working correctly.

I suppose problem is inside format of VCALENDAR attachement sent in email.
 

Yes of course. I checked this before I create this thread.

Thanks a lot