I have an exchange 2013 with 2 servers. first one runs a CAS role only and the second one runs Mailbox role.
I have also ironport setup to handles both incoming and outgoing emails.
I just upgraded from exchange 2010 and we are still in the process of updating settings.
I have an issue with scanners that cannot email outside our system. I created a receive connector that whitelisted all scanners set anonymous permissions and people can can to their mailboxes just fine but I cannot email from internal scanners to any users on the internet. different email domains of course.
So in essence what is the setting i can change to let everyone scan and email like before to everyone?