We belong to company (example) ABC with ABC.COM. We bought out companies XYZ and DEF. They both had email servers (MX Records) to XYZ.COM and DEF.COM. I am adding a few of their salesmen to our company. I want ONLY the new salesmen to receive mail from XYZ.COM and DEF.COM and send using ABC.COM.
I don't want the entire company to have under there accounts 4-7 different SMTP addresses.
Under Recipient Policies, I have the default policy. So, I started creating a new one but it seems like the only to exclude everyone else is to list every user as IS NOT except for the new salesmen.
This seems to be a lot of work. Is there a better way of doing this?