I have an exchange server, which currently uses @mycompany.com as the domain name for all of the emails.
We've recently gotten a new domain name @abcco.com. A few of the employees need to send and receive email from @abcco.com as well as from @mycompany.com, via Outlook and via OWA.
I've setup the MX records, added @abcco.com to the accepted domains, and gone into the appropriate recipient users and setup an "email address" for them something like "email@example.com".
Receiving emails works fine to their mailbox.
Now the users need to be able to SEND email and have the from address say "@abcco.com", and I'm having trouble with that.
In OWA, you can select the "From" address, but only the one @mycompany.com email address shows up. I need this to also show @abcco.com.
How do I do this?