I have an Exchange 2013 server and a Windows 2012 Standard server running in our network. We are just setting up the Exchange server and email and have run into a problem. When I send an email to one of our local users external email account it shows up in his Exchange mail account but does not show up on his webmail or any other computer not connected to the domain. Example:
I send mail to email@example.com and he gets it in his OWA and Outlook but it does not get to his email on any other devices.