Customize OWA page to open in a new window when logging in


Outlook version
Outlook 2010 32 bit
Email Account
Exchange Server
I'm in the process of migrating from Exchange in-house to O365. I have been able to add an iframe (that displays my OWA logon) onto the Federation Server sign-on page. This provides a single screen for users that have yet been migrated and those that have not, to go to for web access to email.

The problem is that if the user uses the log-into OWA in the iframe, only a portion of the page is show, and it is unusable. A simple fix is to make OWA open into a new window when the "Log on" button is clicked.

I've not a web guy, but didn't think this would be difficult to figure out, but it seems to be beyond my programming abilities.

Any thoughts?

Thanks a bunch