The Tenth Circuit has determined that the Board of Immigration Appeals improperly rejected a notice of appeal where the attorney did not sign the certificate of service line because the notice of appeal was submitted through ECAS, and thus, automatically served on Homeland Security.
The full text of Cortez v. Bondi can be found here:
https://www.ca10.uscourts.gov/sites/ca10/files/opinions/010111277109.pdf