.RB [ \-sasl " | " \-nosasl ]
.RB [ \-saslmech
.IR mechanism ]
+.RB [ \-authservice
+.IR service ]
.RB [ \-snoop ]
.RB [ \-version ]
.RB [ \-help ]
For debugging purposes, you may give the switch
.BR \-snoop ,
which will allow you to watch the POP transaction take place
-between you and the POP server.
+between you and the POP server. If
+.B \-saslmech xoauth2
+is used, the HTTP transaction is also shown.
.PP
If
.B nmh
man page description of
.B \-snoop
for its other features.
+.PP
+If
+.B nmh
+has been compiled with OAuth support, the
+.B \-saslmech xoauth2
+switch will enable OAuth authentication. The
+.B \-user
+switch must be used, and the
+.I user-name
+must be an email address the user has for the service, which must
+be specified with the
+.B \-authservice
+.I service
+switch. Before using this, the user must authorize nmh by running
+.B mhlogin
+and grant authorization to that account. See the
+.B mhlogin
+man page for more details.
+.PP
+Gmail only supports POP3 over TLS, but
+.B inc
+has no TLS support. To work around this, use something like
+.B -proxy 'openssl s_client -connect %h:995 -CAfile /etc/ssl/certs/ca-certificates.crt -quiet'
.SH FILES
.PD 0
.TP 20
.IR scan (1),
.IR mh\-mail (5),
.IR mh\-profile (5),
+.IR mhlogin (1),
.IR post (8),
.IR rcvstore (1)
.SH DEFAULTS