I have used (neo)mutt since time immemorial, but for the first time am having trouble. My (university) work email is very hard to fetch now: it's hosted by Microsoft, and sufficiently locked down that I can't manage to retrieve it via getmail like I've always done. I would need some kind of per-app token that IT won't give me. Is there any way around this that you other terminal users have discovered? (I am not very technical and have little grasp of email protocols.)

Assuming it's the auth stuff with 365 and the inability to create long-term app passwords; DavMail might solve the problem: https://sourceforge.net/projects/davmail/

It can handle the Office365 stuff (including Oauth2) and basically translates MS "junk" into standard protocols (POP, IMAP, CalDAV, CardDAV, etc). So if you got that to work, you could point getmail at davmail's imap port, and continue to use it like normal.