What is the difference between the This is a public or shared computer and This is a private computer OWA login options.

A lot of companies use Microsoft OWA or ISA Forms-based authentication (FBA) to login to OWA which provides users with two options, "This is a public or shared computer" and "This is a private computer".

Exchange FBA login form

What is the difference? The difference is that Administrators can configure longer session inactivity timeouts for Private connections (e.g. laptop or home) and shorter Public connections (e.g. airport kiosk, customer's site). This ensures that if your session is left open by accident, it will safely be logged off after a configured period of time. Rule of thumb, always choose Public, this is the default, unless you are certain that the computer you are working from is "safe".

Use Ctrl+Shift+R to "Reply all" to the selected message.


Will tablet and Smart phone use be a big part of your OWA 2013 deployment?