Hello,
there is a Exchange 2010 Server with direct SMTP Receiving/Sending
Customer needs a third Email Domain / new Mailadresse
His default old / domain is: contoso.com
new domain: second-company.com
It is no problem if e.g. HELO Name, Email-Certificate, Header-Infos contain still the old Domain.
What should I do to make the new Domain ready for Receiving and perhaps set the new mailadresse peter@second-company.com as default in the mailbox settings under the Email Tab?