Exchange 2013 Public Folder Issues

Brandon Miller
Brandon Miller used Ask the Experts™
We have a 3 server Exchange 2013 DAG with 4 DB's, Recently one of our departments decided to change their domain name. I have been moving their linked accounts from the old domain to the new domain. We have been experiencing a weird issue with public folders and shared mailboxes.

Basically a few times a day all of the public calendars for the users seem to go offline they are unable to reconnect them and it clears them out of their favorites. I have attempted re-creating the calendars and re assigning permissions. Deleting user mailboxes and recreating them and the issue persists. After 5 to 10 minutes they can close and re-open outlook and their calendars are back but their favorites are cleared so they have to re-add the calendars.
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Michael B. SmithManaging Consultant

What do you mean "change the domain name"? Please explain in detail.
Brandon MillerSystems Administrator


They created a new domain and are migrating users to it, I explained this in the question.
Systems Administrator
I found the issue was with cross forest nested groups. We were attempting to save some time and administration. What we found is that when you nest a group cross forest and then give said group permissions to shared mailboxes and public folders it causes issues with exchange. I was able to resolve the issue by directly giving users permissions to the folder rather than group based.

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