switch.
.PP
If nmh is using
-.BR sendmail/pipe ,
+.B sendmail/pipe
+or
+.B sendmail/smtp
as its mail transport system, the
.B \-sendmail
switch can be used to override the default
describes the ways to supply a username and password.
.PP
If SASL authentication is successful,
-.BR nmh
+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