Hi Neo,
it is simple I am asking here,
user has nokia lumia 620
User email is configured on this mobile.
user is trying to send an calendar invite from mobile
here the attendees are added by proper steps search from exchange address book and all the attendees are internal.
when the invite is sent user is receiving this NDR.
outlook and OWA are working perfect there is no problem with OWA and outlook.
user can sent calendar invite from outlook and OWA without any problem.
thanks,
vaijnath