gsasl 1.8.1-1 (amd64 binary) in ubuntu focal

 GNU SASL is an implementation of the Simple Authentication and
 Security Layer framework and a few common SASL mechanisms. SASL is
 used by network servers (e.g., IMAP, SMTP) to request authentication
 from clients, and in clients to authenticate against servers.
 .
 This package contains the GNU SASL command line tool and the
 GNU SASL manual.