This is a potential security issue, you are being redirected to https://csrc.nist.gov.
The email@example.com mailing list is used for announcements and questions about the NIST Multi-Party Threshold Cryptography project.
The TC-forum is an unmoderated mailing list; messages sent to this list are immediately distributed to all the addresses on the list. Only members are allowed to post messages to the list, by sending an email to firstname.lastname@example.org, but anyone can subscribe to the list.
The archive is available at: https://groups.google.com/a/list.nist.gov/forum/#!forum/tc-forum
If you do not currently have a Google account, you can sign up using your current email address at: https://accounts.google.com/SignUpWithoutGmail.
For those inside NIST, visit: https://list.nist.gov/tc-forum