How to configure iCloud mail in Mozilla Thunderbird

Incoming:

Protocol: IMAP
Server: imap.mail.me.com
Port: 993
SSL: SSL/TLS
Authentication: Normal password

Outgoing:

Protocol: SMTP
Server: smtp.mail.me.com
Port: 587
SSL: STARTTLS
Authentication: Normal password

Username for both should just be your actual username “dormouse.young”, not your whole email address.