.TP
.B SASL_MECH <mechanism>
Specifies the SASL mechanism to use.
-.B This is a user-only option.
.TP
.B SASL_REALM <realm>
Specifies the SASL realm.
-.B This is a user-only option.
.TP
.B SASL_AUTHCID <authcid>
Specifies the authentication identity.