1MH-TAILOR(5) File Formats Manual MH-TAILOR(5)
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6 mh-tailor, mts.conf - mail transport configuration for nmh message han‐
7 dler
8
10 The file /etc/nmh/mts.conf defines run-time options for those nmh pro‐
11 grams which interact (in some form) with the message transport system.
12 At present, these (user) programs are: ap, inc, msgchk, post, rcvdist,
13 and rcvpack.
14 Each option should be given on a single line. Blank lines and lines
16 which begin with `#' are ignored. The options available along with de‐
17 fault values and a description of their meanings are listed below:
18 mts:
20 The mail transport method to use. The three acceptable options
21 are smtp (which is the default), sendmail/smtp, and sendmail/pipe.
22 If you use smtp, this will enable a direct SMTP interface in nmh.
24 When sending mail, instead of passing the message to the mail
25 transport agent, post will open a socket connection to the mail
26 port on the machine specified in the servers entry.
27 If you use sendmail/smtp, then post will send messages by forking
29 a local copy of sendmail. It will still speak SMTP with this lo‐
30 cal copy of sendmail. For backward compatibility, sendmail/smtp
31 can be abbreviated to sendmail.
32 The third alternative, sendmail/pipe, also forks a local copy of
34 sendmail but feeds the message directly to it, using sendmail -t.
35 This replaces the old, undocumented spost mechanism and retains
36 some of its limitations, such as lack of support for the “Dcc:”
37 header field, as described in the send and post manual pages.
38 localname:
40 The hostname nmh considers local. It should typically be a fully
41 qualified hostname. If this is not set, depending on the version
42 of Unix you're running, nmh will query the system for this value
43 (e.g. uname, gethostname, etc.), and attempt to fully qualify this
44 value.
45 If you are using POP to retrieve new messages, you may want to set
47 this value to the name of the POP server, so that outgoing mes‐
48 sages appear to have originated on the POP server.
49 localdomain:
51 If this is set, a `.' followed by this string will be appended to
52 your hostname.
53 This should only be needed, if for some reason nmh is not able to
55 fully qualify the hostname returned by the system (e.g. uname,
56 gethostname, etc.).
57 clientname:
59 This option specifies the host name that nmh will give in the SMTP
60 HELO (and EHLO) command, when posting mail. If not set, the de‐
61 fault is to use the host name that nmh considers local (see local‐
62 name above). If this option is set, but empty, no HELO command
63 will be given.
64 Although the HELO command is required by RFC 821, many SMTP
66 servers do not require it. Early versions of SendMail will fail
67 if the hostname given in the HELO command is the local host.
68 Later versions of SendMail will complain if you omit the HELO com‐
69 mand. If you run SendMail, find out what your system expects and
70 set this field if needed.
71 systemname:
73 This option is only used for UUCP mail. It specifies the name of
74 the local host in the UUCP “domain”. If not set, depending on the
75 version of Unix you're running, nmh will query the system for this
76 value. This has no equivalent in the nmh configuration file.
77 mmdfldir: /var/mail
79 The directory where mail drops are kept. If this option is set,
80 but empty, the user's home directory is used. This overrides the
81 default value chosen at the time of compilation.
82 mmdflfil:
84 The name of the mail drop file in the directory where mail drops
85 are kept. If this is empty, the user's login name is used. This
86 overrides the default value (which is empty).
87 spoollocking: fcntl
89 The locking algorithm to use when opening the mail drop. Can be
90 any one of the following:
91 fcntl dot flock lockf
93 maildelivery: /usr/libexec/nmh/maildelivery
95 The name of the system-wide default maildelivery file. See slo‐
96 cal(1) for the details.
97 SMTP support
99 This option is only available if you set mts to smtp.
100 servers: localhost
102 A single hostname to be used when performing mail submission via
103 SMTP. Previous versions of nmh supported multiple hostnames for
104 servers, but the current version of nmh only supports a single en‐
105 try (the name is kept for backwards compatibility reasons). This
106 can be overridden via the -server switch to send(1). It is not
107 possible to change the mail submission port number in the servers
108 entry; see the -port switch to send(1) for this functionality.
109 SendMail
111 This option is only available if you set mts to sendmail/smtp or send‐
112 mail/pipe.
113 sendmail: /usr/sbin/sendmail
115 The pathname to the sendmail program.
116 Post Office Protocol
118 pophost:
119 The name of the default POP service host. If this is not set,
120 then nmh looks in the standard mail drop areas for waiting mail,
121 otherwise the named POP service host is consulted.
122 File Locking
124 A few words on locking: nmh has two main uses for locking: locking the
125 mail spool during mail incorporation, and locking metadata files (se‐
126 quence files, the context) during updates. These locking methods can
127 be configured separately from each other.
128 For locking the mail spool, the spoollocking entry in mh-tailor(5) will
130 control the locking algorithm to use when inc incorporates mail from
131 the spool file. If no entry is given, a default based on the operating
132 system type will be chosen.
133 For locking all other files, the datalocking entry in mh-profile(5)
135 controls the locking algorithm used for all other file access. If no
136 entry is given, the fcntl lock method will be chosen.
137 If you do not wish to use kernel-based locking, dot locking is an op‐
139 tion available. If “--enable-lockdir=directory” is not specified at
140 build time, lock files will be created in the directory where the file
141 being locked resides. Otherwise, lock files will be created in the di‐
142 rectory specified by “--enable-lockdir”.
143 Prior to installing nmh, you should see how locking is done at your
145 site, and set the appropriate values.
146
148 /etc/nmh/mts.conf nmh mts configuration file
149
151 None
152
154 mh-mts(8), post(8) send(8)
155
157 As listed above. The path of the mail transport configuration file can
158 be changed with the MHMTSCONF environment variable and augmented with
159 the MHMTSUSERCONF environment variable, see mh-profile(5).
160
162 Failure to open any mail transport configuration file is silently ig‐
163 nored. Therefore, it's best to avoid dynamic creation of such a file
164 with the intent of use via the MHMTSCONF or MHMTSUSERCONF environment
165 variables. If such use is necessary, the ability to successfully open
166 the file should first be verified.
167nmh-1.8 2017-02-19 MH-TAILOR(5)