An early version of the new Outlook on the web will be available through an opt-in toggle

 Hello everyone - Thanks for the comments, questions, and feedback! As well as the good responses!

I'll try to respond to as much as I can in this post.

1. Targeted Release allows the admin to select which users actually have TR. So, an admin can set TR only for a number of testers without the rest of the org getting the toggle. This of course, assumes the tenant/org is not in TR.

2. Browsers - We've found that each major browser behaves differently. Chrome will open one new tab the first time you click on each module (Mail, Cal, People) and then keep coming back to those, Edge opens as many tabs as you open (so if you have Mail, open Cal, and then from Cal open Mail, Edge will open a new Mail tab), and Firefox stays in the same tab when you open/click on each module without opening more. We're investigating.

3. Feedback - Please, use the in-app feature (either a smiley face or in the ? icon), or go to UserVoice

4. If you run the OWA policy cmdlet now, it will block it now

5. The file tab is coming soon. What you see in Outlook.com is a photo tab, so it only shows photos that you've sent/received. The Files tab in Outlook on the web will show in two different lists, all files and images.

Sorry for jumping in late, I am still digging myself out of post-Ignite emails.

I hope this helps and please, let me know if you have any other questions.

Thanks!