I have a customer set up with O365 Small Business Premium and Exchange 2013. Their primary domain for email is xxxx.com. They have another domain eci-xxxx.com .. and would like email sent to the users in this 2nd domain to be forwarded to the corresponding users in the primary domain. They would also like the option to send email from the secondary domain email addresses. Is this possible with O365 SB premium? Or does the secondary domain need it's own email server?
I was told it is possible to set up a domain alias but that doesn't seem to be the case with O365 SB.