New Outlook ignores the "default from address". Always uses the mail account you were last viewing.
TL;DR: When you click a mailto: link or use a share button in your web browser, New Outlook for Windows ignores your "default from address" and uses whichever mail account you were last viewing. The Issue: Whenever one comes from an external app to start an email, like the "Share" button in the web browser or just clicking a mailto: link on a webpage, the New Outlook creates a new draft message. But for the "From" address, it completely ignores the "Default from address" (Settings > Mail > Sync email) and automatically uses the email account one happens to be viewing at that moment. This is a problem. It creates a risk of sending stuff from the wrong account. Furthermore, one can't even change the "From" address in the new draft. Unlike in Classic Outlook, where one can just click a simple dropdown and pick the right account, the "From" field in New Outlook cannot be changed. You're forced to go through this tedious process: Delete the wrongly created draft. Go back to the main New Outlook mail window and manually click on the inbox of the account you actually want to send from. Go back to the webpage or app you want to share or send a message from and click the link or share button again. It's such a clunky workaround for something that used to be a one-second fix. It's a downgrade in usability. The Solution: All New Outlook needs to do is respect the setting that already exists: the new email draft should always default to the account that's set as the "Default from address" under Settings > Mail > Sync email. And like Classic Outlook, New Outlook should allow us to easily change the From-address while composing any new mail message.A major step backwards: Classic Outlook vs. New Outlook on changing the "From" sending account
The Issue: In New Outlook, changing the "From" address after you have already started composing an email message opens a new, blank message window, forcing you to copy and paste your original message subject, contents, and attachments. This is an irritating change from Classic Outlook, where you could simply switch the sending account from a dropdown menu while keeping your drafted message fully intact. Expected behavior: When changing the "From" address while composing a mail message, it should simply be updated to the newly selected account, and the body, subject line, and any attachments of the message you are writing at that time should be preserved within the same composition window. The Classic Outlook Way (The Right Way) to Switch the "From" address: For years, my workflow in Classic Outlook has been simple. I click "New Email." The new message window opens, and the "From" field shows the currently selected account. I start writing my message. Then I realize I wanted to send it from another mail account. I click the "From" button, and a dropdown menu appears with all my accounts. I pick the one I want, and I'm good to go. The message content is untouched, it's all still there. Changing the From-address is a two-second action that is intuitive and efficient. The "New Outlook" Way (The Baffling Way) to Switch the "From" address: Now, I try to do the exact same thing in the "New Outlook." I click "New Email." The new message window opens, and the "From" field shows the currently selected account. I start writing my message. Then I realize I wanted to send it from another mail account. I click the "From" button, and a dropdown menu appears with all my accounts. I pick the one I want. But then, after choosing a different From-address, a completely blank new message is opened. And I have to copy/paste everything from the message window I was writing in before to the newly opened message window. So annoying! This feels like a classic case of simplifying the UI to the point where it loses critical functionality. What used to be a simple dropdown selection in Classic Outlook is now an irritating multi-step process in New Outlook. It seems to be an intentional design choice, but it's one that ignores the reality of how users with multiple mail accounts actually work.
