Ok. This is creating a huge headache for me - as it sounds like it is for most of you. Using a hotmail account I use for just junk, I set it up on my iPhone using the Outlook option, and it was all great. Went to my MacBook (Sonoma 14.5) and did the same using the Microsoft Exchange as suggested, and it worked swimmingly as well. Now, here is where the problem arises. In the old way of doing emails, I had mine set up as a Pop acct and not an IMAP acct. That meant that emails downloaded to my phone were still left on the server until I downloaded them onto my MacBook. In the Exchange protocol, they downloaded onto my phone and onto my Mac. Great I thought I have this sorted! But nope. When I deleted the emails from my iPhone, they also deleted off of the server AND my MacBook. This will be a disaster for me. As I use my phone during the day, I read and delete emails as needed, and then the next morning, download everything onto my MacBook. That will no longer work because the emails will no longer be on the server, because once they're deleted from my phone, the server deletes them. I'm not sure what the workaround for that is. Anyone have any ideas?