-.TH MSGCHK %manext1% "August 14, 2016" "%nmhversion%"
-.\"
+.TH MSGCHK %manext1% 2016-11-02 "%nmhversion%"
+.
.\" %nmhwarning%
-.\"
+.
.SH NAME
-msgchk \- check for messages
+msgchk \- nmh's check for incoming email
.SH SYNOPSIS
.HP 5
.na
.B msgchk
+.RB [ \-help ]
+.RB [ \-version ]
.RB [ \-date " | " \-nodate ]
.RB [ \-notify
all/mail/nomail ]
.IR hostname ]
.RB [ \-user
.IR username ]
-.RB [ \-sasl ]
+.RB [ \-sasl " | " \-nosasl ]
.RB [ \-saslmech
.IR mechanism ]
+.RB [ \-initialtls ]
+.RB [ \-notls ]
+.RB [ \-certverify " | " \-nocertverify ]
.RB [ \-authservice
.IR service ]
.RB [ \-snoop ]
.RI [ users
\&... ]
-.RB [ \-version ]
-.RB [ \-help ]
.ad
.SH DESCRIPTION
The
which says that
.B msgchk
should always report the status of the
-users maildrop. Other values for `type' include `mail' which says that
+users mail drop. Other values for `type' include `mail' which says that
.B msgchk
should report the status of waiting mail; and, `nomail'
which says that
.B msgchk
-should report the status of empty maildrops.
+should report the status of empty mail drops.
The
.B \-nonotify
.I type
directs
.B msgchk
to never report the status of
-maildrops. This is useful if the user wishes to check
+mail drops. This is useful if the user wishes to check
.BR msgchk 's
-exit status. A non\-zero exit status indicates that mail was
-.B not
+exit status. A non-zero exit status indicates that mail was
+.I not
waiting for at least one of the indicated users.
.PP
If
To specify a username for authentication with the POP server, use the
.B \-user
.I username
-switch. The credentials profile entry in the mh\-profile(5) man page
+switch. The credentials profile entry in
+.IR mh\-profile (5)
describes the ways to supply a username and password.
.PP
For debugging purposes, there is also a switch
which will
allow you to watch the POP transaction take place between you and the
POP server. If
-.B \-saslmech xoauth2
+.B \-sasl \-saslmech xoauth2
is used, the HTTP transaction is also shown.
.PP
If
the use of SASL authentication. Depending on the SASL mechanism used, this
may require an additional password prompt from the user (but the
.I netrc
-file can be used to store this password, as described in the
-mh-profile(5) man page). The
+file can be used to store this password, as described in
+.IR mh-profile (5).
+The
.B \-saslmech
switch can be used to select a particular SASL mechanism.
.PP
with `(encrypted)' and `(decrypted)' when viewing the POP transaction
with the
.B \-snoop
-switch; see the
-.B post
-man page description of
+switch; see
+.IR post (8)'s
+description of
.B \-snoop
for its other features.
.PP
If
.B nmh
has been compiled with OAuth support, the
-.B \-saslmech xoauth2
+.B \-sasl \-saslmech xoauth2
switch will enable OAuth authentication. The
.B \-user
switch must be used, and the
.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.
+and grant authorization to that account. See
+.IR mhlogin (1)
+for more details.
.PP
-Gmail only supports POP3 over TLS, but
-.B msgchk
-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'
+If
+.B nmh
+has been compiled with TLS support, the
+.B \-initialtls
+switch will require the negotiation of TLS when connecting
+to the remote POP server. The
+.B \-initialtls
+switch will negotiate TLS immediately after the connection has taken place,
+before any POP commands are sent or received. Data encrypted by TLS is
+labeled `(tls-encrypted)' and `(tls-decrypted)` with viewing the POP
+transaction with the
+.B \-snoop
+switch. The
+.B \-notls
+switch will disable all attempts to negotiate TLS.
+.PP
+When using TLS the default is to verify the remote certificate and SubjectName
+against the local trusted certificate store. This can be controlled by
+the
+.B \-certverify
+and
+.B \-nocertverify
+switches. See your OpenSSL documentation for more information on certificate
+verification.
.SH FILES
.fc ^ ~
.nf
.ta \w'%nmhetcdir%/ExtraBigFileName 'u
-^$HOME/\&.mh\(ruprofile~^The user profile
+^$HOME/.mh_profile~^The user profile
^%nmhetcdir%/mts.conf~^nmh mts configuration file
^%mailspool%/$USER~^Location of mail drop
.fi
.fi
.SH "SEE ALSO"
.IR inc (1),
-.IR mh\-mail (5)
+.IR mh\-mail (5),
.IR post (8)
.SH DEFAULTS
.nf
projects / nmh / blobdiff