Apple email PW not working in Outlook - Not the NEW Outlook - old version full program

Hello,

I just tried to send an email utilizing my Outlook full program from my Apple email account which I created all the way back when the domain for email for what is now called iCloud email was still @me.com and it brought up the PW box but the PW isn't working. The PW box keeps coming up when I have Outlook open and it is completely driving me nuts to the point that I have to keep Outlook closed. I know the PW is 100% correct. I set this account up a long while ago including a properly functioning app specific password, and until now it has been working perfectly.

It works on my iPad Pro and iPhone 13 Pro Max using the native email apps on both. I have already cross posted this problem to the Microsoft Forum. Important to note: I do NOT use the NEW OUTLOOK; I still use the OLD OUTLOOK and I use the full program that I downloaded directly from my Microsoft 365 account a very long time ago, not any sort of App from the Microsoft/Windows App Store on my Win11 Pro computer. Also important to note, I am still able to receive new emails in my Outlook, I am just unable to SEND any emails. Can someone please confirm for me what the SMTP server information is so I can check my settings in addition to helping me to troubleshoot this issue?