The "new" code appears to be https://github.com/tonyg/erlang-smtp/blob/master/src/smtp_server_session.erl https://github.com/tonyg/erlang-smtp/blob/master/src/s

The "new" code appears to be https://github.com/tonyg/erlang-smtp/blob/master/src/smtp_server_session.erl https://github.com/tonyg/erlang-smtp/blob/master/src/smtp_se... with the copyright notice changed.