Outlook now uses OAuth2/Modern Auth for SMTP servers, which Thunderbird does not offer. This means I cannot send emails from one of my oldest and most widely spread email addresses.
Thunderbird is always asking for donations; I have never donated. If (and only if) you update your protocols so I can continue to use my Outlook (Hotmail) address, I will finally send you some money.
I know you have no reason to trust me, but take a chance. Maybe I can restore some of your faith ion the decency of humanity---after you restore my email access.
😄