How to find Outbox in Mail -Mac/Ipad/Iphone

I have been facing problem with sending emails via Outlook in mail App, often it is just stuck in Draft and when I click Send button it just remain there. However, I could send the same mail from the different Outlook mail outside the Apple mail .

So many posts about How to find Outlook in mail, I also have the same questions.

When I tried to create a new Folder as 'Outbox' in Mac, it is declined with the message that, there is an Outbox folder already exists - BUT where it is (Hidden under Draft or Sent?) and how to find it in Mac?

However, I have found a way to find it in "Iphone" and Once you have done these steps you may as well see the missing "Outbox" under the Folder Icon top left hand corner:

1. Select an email from any mail box and try to move to a different mail box
2. Use the Spot light and search for 'Outbox'
3. Click Move to 'Outbox'
4. Repeat the same with another 2-3 email.

Now you will find the Outbox in the left side bar.

Now, if you REFRESH your mail, perhaps you will find the missing "Outbox" on top Left hand corner under the Mail Box.