Provided by: nmh_1.8-1build4_amd64 
NAME
inc - incorporate new mail to an nmh folder
SYNOPSIS
inc [-help] [-version] [+folder] [-audit audit-file] [-noaudit] [-changecur | -nochangecur] [-form
formfile] [-format string] [-file name] [-silent | -nosilent] [-truncate | -notruncate] [-width
columns] [-host hostname] [-port portname/number] [-user username] [-proxy command] [-sasl |
-nosasl] [-saslmech mechanism] [-authservice service] [-tls] [-initialtls] [-notls] [-certverify |
-nocertverify] [-snoop]
DESCRIPTION
inc incorporates mail from the user's incoming mail drop into an nmh folder. If the mail drop is a file,
it can be in mbox or MMDF format. If the mail drop is a directory it is considered to be in Maildir
format.
You may specify which folder to use with +folder. If no folder is specified, then inc will use either
the folder given by a (non-empty) “Inbox” entry in the user's profile, or the folder named “inbox”. If
the specified (or default) folder doesn't exist, the user will be queried prior to its creation.
When the new messages are incorporated into the folder, they are assigned numbers starting with the next
highest number for the folder. As the messages are processed, a scan listing of the new mail is
produced.
The newly created messages will have a mode of 0600, see chmod(1), on filesystems that support it.
Alternatively, a “Msg-Protect: nnn” profile entry gives the mode to use, in octal. For all subsequent
operations on these messages, this initially assigned mode will be preserved.
If the switch -audit audit-file is specified (usually as a default switch in the user's profile), then
inc will append a header line and a line per message to the specified audit-file with the format:
<<inc>> date
<scan line for first message>
<scan line for second message>
<etc.>
This is useful for keeping track of volume and source of incoming mail. Eventually, repl, forw, comp,
and dist may also output audit information to this (or another) file, perhaps with “Message-Id”
information to keep an exact correspondence history. “Audit-file” is assumed to be in the user's nmh
directory unless a full path is specified.
inc will incorporate even improperly formatted messages into the user's nmh folder, inserting a blank
line prior to the offending component and printing a comment identifying the bad message.
In all cases, except the use of -file name (see below), the user's mail drop will be zeroed, unless the
-notruncate switch is given.
If the profile entry “Unseen-Sequence” is present and non-empty, then inc will add each of the newly
incorporated messages to each sequence named in the profile entry. inc will not zero each sequence prior
to adding messages.
The interpretation of the -form formatfile, -format string, and -width columns switches is the same as in
scan(1).
By using the -file name switch, one can direct inc to incorporate messages from a file other than the
user's mail drop. Note that the named file will not be zeroed, unless the -truncate switch is given.
The -file switch does not support the use of standard input. Instead, the rcvstore command can be used
to incorporate mail from the standard input stream.
If the environment variable $MAILDROP is set, then inc uses it as the location of the user's mail drop
instead of the default (the -file name switch still overrides this, however). If this environment
variable is not set, then inc will consult the profile entry “MailDrop” for this information. If the
value found is not absolute, then it is interpreted relative to the user's nmh directory. If the value
is not found, then inc will look in the standard system location for the user's mail drop.
The -silent switch directs inc to be quiet and not ask any questions at all. This is useful for putting
inc in the background and going on to other things.
Using POP
inc will normally check local mail drops for mail, as covered above. But if the option “pophost” is set
in “mts.conf”, or if the -host hostname switch is given, or if the $MAILHOST environment variable is set,
then inc will query this POP service host for mail to incorporate. If $MAILHOST is set and -host is
specified as well, the command-line switch will override the environment variable. The -port switch
specifies the port name or number used to connect to the POP server. If unspecified, the default is
“pop3”.
To specify a username for authentication with the POP server, use the -user username switch. The
credentials profile entry in mh-profile(5) describes the ways to supply a username and password.
If passed the -proxy command switch, inc will use the specified command to establish the connection to
the POP server. The string %h in the command will be substituted by the hostname to connect to.
For debugging purposes, you may give the switch -snoop, which will allow you to monitor the POP
transaction. If -sasl -saslmech xoauth2 is used, the HTTP transaction is also shown.
If nmh has been compiled with SASL support, the -sasl switch will enable the use of SASL authentication.
Depending on the SASL mechanism used, this may require an additional password prompt from the user (but
the netrc file can be used to store this password, as described in mh-profile(5)). The -saslmech switch
can be used to select a particular SASL mechanism.
If SASL authentication is successful, inc will attempt to negotiate a security layer for session
encryption. Encrypted traffic is labelled with `(encrypted)' and `(decrypted)' when viewing the POP
transaction with the -snoop switch; see post(8)'s description of -snoop for its other features.
If nmh has been compiled with OAuth support, the -sasl and -saslmech xoauth2 switches will enable OAuth
authentication. The -user switch must be used, and the user-name must be an email address the user has
for the service, which must be specified with the -authservice service switch. Before using this, the
user must authorize nmh by running mhlogin and granting authorization to that account. See mhlogin(1)
for more details.
If nmh has been compiled with TLS support, the -tls and -initialtls switches will require the negotiation
of TLS when connecting to the remote POP server. The -tls switch will direct inc to negotiate TLS as part
of the normal POP protocol using the STLS command. The -initialtls switch will direct inc to 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)' when viewing the POP transaction with
the -snoop switch. The -notls switch will disable all attempts to negotiate TLS.
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 -certverify and -nocertverify switches. See your
OpenSSL documentation for more information on certificate verification.
FILES
$HOME/.mh_profile The user's profile.
/etc/nmh/mts.conf mts configuration file.
/var/mail/$USER Location of the system mail drop.
PROFILE COMPONENTS
Path: To determine the user's nmh directory.
Alternate-Mailboxes:
To determine the user's mailboxes.
Inbox: To determine the inbox.
Folder-Protect: To set mode when creating a new folder.
Msg-Protect: To set mode when creating a new message and audit-file.
Unseen-Sequence: To name sequences denoting unseen messages.
SEE ALSO
mhmail(1), scan(1), mh-mail(5), mh-profile(5), mhlogin(1), post(8), rcvstore(1)
DEFAULTS
+folder defaulted by “Inbox” above.
-noaudit
-changecur
-format As described above.
-nosilent
-nosasl
-notruncate Unless -file name is given.
-width The width of the terminal.
CONTEXT
The folder into which messages are being incorporated will become the current folder. The first message
incorporated will become the current message, unless the -nochangecur option is specified. This leaves
the context ready for a show of the first new message.
nmh-1.8 2016-11-02 INC(1mh)