we host our own exchange 2013 server internally with a couple hundred mailboxes for 'companyA.com'.
we are going to have a new startup company with only a handful of mailboxes/users (offsite) but they will be usingname@companyB.com.
what is the best way to host 2 different domains on our existing hardware/licenses?
is there a way to avoid having all of my existing users SMTP address appended with this second domain? (if i remember correctly, when you add a new domain to the accepted domain list, all existing users get 1 SMTP address entry added to their list.
Thanks, Tony McPherson