Am having a problem on my new Cisco Router 1921 series, When i connect to the console am getting the attached error please advice   

My device has 3 interfaces configured: inside, outside, DMZ.  Right now I can access the Mail server from the Internet using domain name which is on DMZ interface. The issue here is when users  they need to configure their Ms Outlook for Incoming mai...

My device has 3 interfaces configured: inside, outside, DMZ.  Right now I can access the Mail server from the Internet using domain name which is on DMZ interface. The issue here is when users  they need to configure their Ms Outlook for Incoming mai...