Do not open calendar, contacts or tasks in a new window, or at least make that configurable!

If you're using a browser-app window (Chrome is capable of that) than you have an application window for Outlook 365, with Icon on the desktop and all, and you have no tabs in that window.
If the calendar and the others are opened in a new window, a new browser window with that tab opens and you loose the overview you have with that integrated browser-web-application.

So for now I am back to the old version due to this.

This is important to show the full list of events of selected date at right hand side

Open a new window when hit reply, is not available on this version.

It should be possible to attach files from SharePoint sites as well as OneDrive and local computer files!!!

Improve the search function so you can filter the search by words/content and by who sent it.

Although the added tab feature is nice, the option of easily popping out an email into a new window should also be retained. I use this feature a lot, and I know others who do too.

The new format is nice but it is missing a key part of the old calendar. The new format needs to include the right side bar that shows the entire list of events for the selected day. This is helpful when there are several events for the day. Without the right side bar it is difficult to see the entire day's events when on month or week view. Please bring this side bar back. It looks like several people want it back.

Dear team,

when replying directly to a mail in the New Outlook Online version, I cannot include my signature (I need to open the mail in a separate window for that).

Can you please tell me if this will be fixed?

THanks and Regards,
Celine

Please restore the feature that allows copying an email to multiple folders. Very important for organizing!

Open in a separate window (for messages in Inbox) does not open a new window with the message but rather a new window with the WHOLE Inbox!

which is annoying

hate new outlook. impossible to use search feature. Has become as bad as gmail. Used to be able to search and only items with that search criteria appeared. Now all the emails with or without search criteria appear. Yuck.

No GAL showed up in the new Outlook.

I pin emails as a to do list for myself. In the new format, it looks like just the subject is available. The old format was better as it showed more.

DISABLE CONVERSATION VIEW does not exist in the "new outlook". And it's something that it is really needed

keep cleaner light theme

please DO NOT try to make it look fancy and colourfull like google. Keep it cool. Thanks.

When using shift+arrow keys to select part of the text while, for instance, writing an email, it automatically deselects the text if I'm trying to select more than one character. Similarly, if I use ctrl+shift+arrow keys to select entire words, it deselects if I try to select more than one word. This worked fine in the previous Outlook. (I am using Firefox on Windows 10)

New Outlook (office 365) - cannot easily see where to add a new shared calendar. Did a fish design the new web interface, it is terrible!