.RB [ \-pack
.IR file ]
.RB [ \-nopack ]
-.RB [ \-apop " | " \-noapop ]
-.RB [ \-kpop ]
.RB [ \-sasl ]
.RB [ \-saslmech
.IR mechanism ]
.IR hostname ]
.RB [ \-user
.IR username ]
-.RB [ \-apop " | " \-noapop ]
-.RB [ \-kpop ]
.RB [ \-sasl ]
.RB [ \-saslmech
.IR mechanism ]