Cyrus SASL
Cyrus SASL is a part of Cyrus Project.Cyrus SASL refers to the CMU Implementation of the SASL C API. This includes the implementation of a number of SaslMechanisms along with some database backends and SaslGlueCode intermediate support (between the application and the mechanisms).

Cyrus SASL can be used on the client or server side to provide authentication and authorization services.

Examples of applications that may use Cyrus SASL are Cyrus IMAPd, Sendmail, Mutt, Postfix, sieveshell, cyradm, and many others.