There may be a problem with the root server or network. Check the settings for account or try again.
The server error encountered was: root was unable to verify the
identity of this server, which has a certificate issued to 'server' or
network. The error was:
The root certificate for this server could not be verified.
You might be connecting to a computer that is pretending to be "mail.cs.unm.edu", and putting your confidential information at risk.