Recently we have noticed that in one of our exchange server all the mailboxes has lost access to one of our admin account.
To tackle this issue temporarily, I have used the following power-shell command:
Get-Mailbox -Database “Server\Database” | Add-MailboxPermission -user 'accountname' -AccessRights 'FullAccess' -InheritanceType All
This command has added the admin user on full permissions to all the mailboxes on the server, but when I create new mailbox on the server, the admin account is not getting added on full permissions for the new mailbox.
I request your help to get help and troubleshoot this issue.