Thunderbird and Outlook can auto configure their settings for the CNF email server.
For outlook (Desktop version on Windows) to auto configure itself, you must use the classic "Mail" email account setup. The new Modern style setup wizard only works for Office365 accounts.
Because each email client differs in how it presents and names configuration options, we can only provide general configuration guidenace as below:
Protocol: IMAP
Port: 993
Security: SSL/TLS
Authentication Type: Password
Server name: parcel.cnf.cornell.edu
IMAP Idle: Yes
Protocol: SMTP
Port: 587 (for outlook mobile use port 465)
Security: StartTLS
Authentication Type: Password
Server name: parcel.cnf.cornell.eduÂ