Here is my Scenario,
I have an internal Windows 2012 server With Exchange 2013 installed, an external Hoster for our dns web and mail. I have installed a third party Exchange pop3 connector who connect to our external hoster to dispatch mails in specific mailboxes, everything works fine but the boss don't want his mails to go to our exchange server, he wants only imap connexion to our external hoster, the problem comes when we try to send e-mails to the boss from internal domain, he's not receiving them to the external host. So how can i proceed to have a clean solution ?
Thank you in advance