Using New Outlook on Windows for professional communication and productivity
I'm the one who started this thread and thought I'd share an update. I have found that sometimes I can stop Outlook from taking over by uninstalling it. However, sometimes Mail will start doing its thing where it installs Outlook and keeps taking me there.
I have researched alternatives to Mail, and found one that is similar: Mailbird. Mailbird has a simple interface that makes it easy to switch between email accounts, just like Mail. There's a free version if you have one email account, if you have multiple accounts like I do you have the option of $3/month or a one-time fee for the program. Mailbird looks to be the most similar program to Microsoft Mail I have seen thus far.
There's one issue to be aware of: Apparently Microsoft's move to increase their security requirements (to the OAuth standard) has caused an issue with some email programs like Thunderbird and also Mailbird. These programs can connect but sometimes it randomly disconnects. Not everyone has problems though. It seems like this is an ongoing issue that will hopefully be resolved at some point. Mailbird support has some suggestions for troubleshooting in the meantime.
I dislike the cluttered, complicated view of most other email programs, especially when using multiple email accounts. I'm grateful there's a program like Mailbird which will hopefully continue the tradition of easy emailing!