The unified mail inbox doesn't show emails received on an Apple (IMAP) account. Curious commission. Works perfectly well in the IoS version.

"View Source" was an important tool for looking at the source (headers, body, servers, etc.) of a received message. It was in the context menu (right-click) but is no longer there. I could not find it in the menus either.

When sending an incorrect email add the ability to recall that email from all recipients as is possible with Office for Windows client.

Ooops - did we lose the 'Resend' option for sent messages?

With the New Outlook for Mac, you seem to have removed the functionality to right-click on an email and set a reminder/flag/due date for a mail item. Can you please return this functionality? I found it especially useful for items that I could not act on at the moment but needed to follow back up with.

I know I can tap in open in new window, but having to press it everytime is tedious and prone to mistakes

Add support for voting buttons.

It would be good to bring back the ability to resize columns in "New Outlook" since I'd like to see more of the message title and less of the sender.
It would also be good to be able to change the colum order, or move the delete/archive flag column back to the left. In the current order, I keep accidentally deleting messages, something I never did when that column was at the left.

It will be very useful to integrate a button that, while replying to a mail, send a message and archive all the thread.

In Outlook for Windows I can add a send delay to every message as a rule. I like doing this because it gives me an extra minute or more to change my mind about an email after clicking 'Send'.

The web version offers a 10-second delay, which is even better than nothing.

The web based outlook.com and the windows version of outlook 2019 and 365 both support alias support. Only the mac version does not support this. It would be very useful if such support was added.

Support for contact lists from Outlook.com on the web.

I know contact groups (...@groups.outlook.com) are supported, but support for contact LISTS is also needed.

Allow Embedded Outlook Messages (.msg files) to be opened in Outlook for Mac. Colleagues regularly forward embedded emails that I can't open

Outlook for Web condenses the conversation nicely; expanding only the most recent message and giving a preview of the others. You can then expand each previous message separately if you need more context.

I LOVE the Outlook web app and want it as a native macOS app.

The checkmark is important. It gives me some small joy and semblance of accomplishment. Without the checkmark my inbox is just a continuously growing list of questions, tasks and requests that will never appear to be completed. It will just continue to grow and grow and grow. It's the thing of nightmares and panic attacks. Please, let me have my little checkmark.

Just like on outlook.com it would be nice to be able to pin messages at the top of folders and sync whatever message you pin in outlook.com to also pin it on the app.

When I'm searching sent mail, I NEVER need to search on the From: message, and am ALWAYS looking for a message I sent to someone. I'm sure there are exceptions to that for some people and accounts, but in general, that would be the intelligent field to be searching for when in the Sent folder.

We know that the unified inbox is coming back but it's really important that we can set it as the default view when Outlook in launching.

This feature is really simple but very important. It was missing from the last Outlook on Mac.

Please. Add it.

When the notification window is displayed for new incoming email, please include buttons to quickly archive, delete, or flag the new incoming email without having to go to the main outlook window. It would be nice to be able to quickly delete incoming email if we don't want to read it, right from the notification display.