Hi All
I am using exchange 2010 hybrid environment, we create regular mailboxes and shared mailboxes in onprem and migrate them to cloud.
i have a shared mailbox with name sharedmailbox01@contoso.com, i have renamed it to sharedmailbox@contoso.com in onprem, but in cloud
still i am still seeing secondary smtp address as sharedmailbox01@contoso.onmicrosoft.com how do i delete this smtp address.
When i try to delete it from office365 exchange admin center i am getting the below error.
