App called Outlook(new) is automatically installed despite I uninstall it.

Microsoft have disabled the ability to add IMAP accounts so that basically makes it unusable for a vast majority of people who have their own businesses, their own domain name or a third party IMAP provided email address. It worked before but you clowns disabled it. I'm guessing so you can charge us once you've disabled Mail.

Let's see if that decision sticks once you get slapped with another law suit over this debacle. Or another nice big fat juicy fine from the EU for your underhanded tactics in this matter. There is zero reason the Mail app needs to be disabled. It's just your company forcing us to use the new Outlook so you can spy on us and sell advertising through the 'features.' Just like you're doing with Edge opening PDFs.

Microsoft just paid billions for the Microsoft Teams debacle. You'd think you clowns would have learned form that mistake.

Yeah I thought about that too but I don't like to keep my computer running all the time especially when I'm not using it because computer parts don't burn out as fast when they're not being used🙄.

Thanks Hal & Sean. Keith - similar for me. After I had to go and reinstall mail & calendars, the work around I'm using is to just uninstall New outlook (again) and keep mail open. Have to keep it open and new outlook seems to not overtake it, but if you close or restart, the big bad brother returns to take over your computer and the world.

I gave up after trying numerous fixes including editing the registry. I have switched to Gmail. Mail and Calendar didn't have many features, and was pretty much worthless (especially blocking spam), but it was good enough. I found myself being one of the guinea pigs trying the New Outlook when it first was offered, and switched back after it lost all of my Contacts (still haven't recovered them). To be forced to take their "catch-up" email client was not something I wanted to do. They could have posted a flag, just like the try/dismiss flag, telling people they only had a month or two until Mail was no longer supported. As this started the same day that I had problems with Defender (and had to get another antivirus for protection as Defender was too corrupted to fix), I wasted four days between the two of them. Unless I get a new computer (this one will not convert to Windows 11), I will get used to Gmail and the Chrome browser the antivirus installed and replaced Edge on my computer. It seems they are driving away customers.