.RB [ \-watch " | " \-nowatch ]
.RB [ \-width
.IR columns ]
-.RB [ \-sasl ]
-.RB [ \-saslmech
-.IR mechanism ]
-.RB [ \-user
-.IR username ]
.I file
.RB [ \-version ]
.RB [ \-help ]
.PP
If
.B nmh
-has been compiled with SASL support, the
-.B \-sasl
-switch will enable
-the use of SASL authentication with the SMTP MTA. Depending on the
-SASL mechanism used, this may require an additional password prompt from the
-user (but the
-.RI \*(lq \&.netrc \*(rq
-file can be used to store this password).
-.B \-saslmech
-switch can be used to select a particular SASL mechanism,
-and the the
-.B \-user
-switch can be used to select a authorization userid
-to provide to SASL other than the default.
-.PP
-If SASL authentication is successful,
-.BR nmh
-will attempt to negotiate a security layer for session encryption.
-Encrypted data is labelled with `(sasl-encrypted)' and `(sasl-decrypted)' when
-viewing the SMTP transaction with the
-.B \-snoop
-switch.
-.PP
-If
-.B nmh
has been compiled with TLS support, the
.B \-tls
switch will require the negotiation of TLS support when connecting to the