Hi,
I've read the related threads but none specifically answer my question.
We have about 15 Accepted Domains and the Default one has been default since the day we installed the Org a few years ago, we want to change this to another, what impact will this have on all existing Mailboxes?
I'm hoping it has no impact, my concern is that it will change all of the Primary SMTP addresses on all mailboxes to the new Default Domain, can someone confirm this will or will not happen?
Many Thanks