Hi All,
We recently migrated a customer from one hosted exchange platform to our own just using export/import of PST's. However calendar items have since become uneditable on a users mailbox..
User 1 (PA) has delegated access over User 2's calendar to makes changes etc, all was working fine before migration.
Now User 1 cannot make changes on existing calendar items for User 2, it just simply responds with NDR's saying you don't have permission.
The only change I have noticed is on the old platform the items showed as being in User 2's Calendar down the bottom of the screen, now they just show as Calendar. So they appear to be in a default and random calendar that no one has access to.
Any ideas?