Hi,
one of user facing problem with calendar entries
when we try to make an new calendar entry in lumia 620 and save.
user is receiving NDR as Remote
Server returned '550 5.1.3 STOREDRV.Submit; invalid recipient address'
wherein entry is ment to internal users and this NDR states ids are invalid.
sending and receiving emails on mobile is working fine its just calendar entries not happening.
users outlook and OWA doesn't have any issue.