We have been an Office 365 for a few years now. During our initial migration I remember having to supply our public IP to O365, I think it was AD sync. But I could be wrong. We are migrating a to a new ISP and our Public IP's will be changing. I know we have to update our DNS info with on our DNS host. But is there anything I need to do internally or with O365 so we don't interrupt mail flow or AD sync?
↧