[MM3-users] Where to start looking?

So I imported all our mailman2 lists into mailman3, and it appears it didn't preserve passwords. So my wife (who administers 3 lists of her own) tried to use the reset password link (multiple times) but she never gets the email. I don't see any outgoing email to her in mail.log, or any of the mailman logs. I do the exact same thing as her and I get the email. Any suggestions on what I should be looking for?

-- Paul Tomblin