DNS Changed for pop.cornell.edu and imap.cornell.edu February 25, 2019
The previously announced change to DNS that points pop.cornell.edu and imap.cornell.edu to Microsoft's systems instead of Cornell's occurred as planned February 25, 2019. Some Thunderbird or other email apps using POP or IMAP that were not configured to use the recommended server setting (
outlook.office365.com) encountered certificate warnings. Individuals affected by this problem should see CIT’s setup instructions - Other Ways to Manage Email to make the warnings stop.