Ubuntu Manpage: masqmail.conf - masqmail configuration file

NAME

       masqmail.conf - masqmail configuration file

DESCRIPTION

This man page describes the syntax of the main configuration file of masqmail. Its usual
location is /etc/masqmail/masqmail.conf

The configuration consists of lines of the form

val = expression

Where val is a variable name and expression a string, which can be quoted with double
quotes `"'. If the expression is on multiple lines or contains characters other than
letters, digits or the characters `.', `-', `_', `/', ';', '@', ':', it must be quoted.
You can use quotes inside quotes by escaping them with a backslash.

Each val has a type, which can be boolean, numeric, string or list. A boolean variable
can be set with one of the values `on', `yes', and `true' or `off', `no' and `false'.
List items are separated with semicolons `;'. For some values, patterns (like `*',`?')
can be used. The spaces in front of and after the equal sign `=' are optional.

Most lists (exceptions: local_hosts, listen_addresses, query_routes.name and
permanent_routes) accept files. These will be recognized by a leading slash `/'. The
contents of these files will be included at the position of the file name, there can be
items or other files before and after the file entry. The format of the files is
different though, within these files each entry is on another line and the entries are not
separated by semicolons. This makes it easy to include large lists which are common in
different configuration files, so they do not have to appear in every configuration file.

Blank lines and lines starting with a hash `#' are ignored.

OPTIONS

run_as_user = boolean

If this is set, masqmail runs with the user id of the user who invoked it and never
changes it. This is for debugging purposes only. If the user is not root,
masqmail will not be able to listen on a port < 1024 and will not be able to
deliver local mail to others than the user.

use_syslog = boolean

If this is set, masqmail uses syslogd for logging. It uses facility MAIL. You
still have to set log_dir for debug files.

debug_level = n

Set the debug level. Valid values are 0 to 6 and 9. Be careful if you set this as
high as 5 or higher, the logs may very soon fill your hard drive. Level 9 enables
printing of debug messages to stderr during reading of the config file. The debug
file comes available for the first time after this step. Thus nothing but stderr
is available. Level 9 is almost never interesting.

log_dir = file

The directory where logs are stored, if syslog is not used. Debug files are always
stored in this directory if debugging is enabled. file must be an absolute path.

Default: /var/log/masqmail

mail_dir = file

The directory where local mail is stored, usually /var/spool/mail or /var/mail.
file must be an absolute path.

Default: /var/mail

spool_dir = file

The directory where masqmail stores its spool files (and later also other stuff).
It must have a subdirectory input. Masqmail needs read and write permissions for
this directory. file must be an absolute path.

Default: /var/spool/masqmail

lock_dir = file

The directory where masqmail stores its lock files. Masqmail needs read and write
permissions for this directory. By default it is a directory ``lock'' inside of
spool_dir. file must be an absolute path.

host_name = string

This is used in different places: Masqmail identifies itself in the greeting banner
on incoming connections and in the HELO/EHLO command for outgoing connections with
this name, it is used in the Received: header and to qualify the sender of a
locally originating message.

If the string begins with a slash `/', it it assumed that it is a filename, and the
first line of this file will be used. Usually this will be `/etc/mailname' to make
masqmail conform to Debian policies.

It is not used to find whether an address is local. Use local_hosts for that.

Default: none; host_name MUST be set in the config file

local_hosts = list

A semicolon `;' separated list of hostnames which are considered local. Can
contain glob patterns, like `*example.org' or `mail?.*mydomain.net'. Normally you
should set it to "localhost;foo;foo.bar.com" if your host has the fully qualified
domain name `foo.bar.com'.

Default: localhost ; <value of host_name cut at the first dot> ; <value of
host_name>

Example: localhost;foo;foo.example.org (if you have set host_name to
foo.example.org)

local_addresses = list

A semicolon `;' separated list of fully qualified email-addresses which are
considered local although their domain name part is not in the list of local_hosts.
This list can be seen as an addition to local_hosts.

Further more only the local part of the addresses will be regarded, seeing it as a
local user.

Example: local_addresses = "person1@yourdomain;person2@yourdomain"

This means mail to person1@yourdomain will effectively go to person1@localhost, if
not redirected by an alias.

not_local_addresses = list

A semicolon `;' separated list of fully qualified email-addresses which are
considered not local although their domain name part is in the list of local_hosts.
This list can be seen as a substraction to local_hosts.

This is the opposite of the previous case. The majority of addresses of a specific
domain are local. But some users are not. With this option you can easily exclude
these users.

Example:

local_hosts = "localhost;myhost;mydomain.net"

not_local_addresses = "eric@mydomain.net"

listen_addresses = list

A semicolon `;' separated list of interfaces on which connections will be accepted.
An interface ist defined by a hostname, optionally followed by a colon `:' and a
number for the port. If this is left out, port 25 will be used.

You can set this to "localhost:25;foo:25" if your hostname is `foo'.

Note that the names are resolved to IP addresses. If your host has different names
which resolve to the same IP, use only one of them, otherwise you will get an error
message.

Default: localhost:25 (i.e. only local processes can connect)

do_save_envelope_to = boolean

If this is set to true, a possibly existing Envelope-to: header in an incoming mail
which is received via either pop3 or smtp will be saved as an X-Orig-Envelope-to:
header.

This is useful if you retrieve mail from a pop3 server with fetchmail, and the
server supports Envelope-to: headers, and you want to make use of those with a mail
filtering tool, e.g. procmail. It cannot be preserved because masqmail sets such a
header by itself.

Default is false.

do_relay = boolean

If this is set to false, mail with a return path that is not local and a
destination that is also not local will not be accepted via smtp and a 550 reply
will be given. Default is true.

Note that this will not protect you from spammers using open relays, but from users
unable to set their address in their mail clients.

do_queue = boolean

If this is set, masqmail will not try to deliver mail immediately when accepted.
Instead it will always queue it. (Note: Masqmail will always automatically queue
mail if neccesary, i.e. if it cannot deliver because no suitable route was
available for example.)

Same as calling masqmail with the -odq option. Usually you should leave this
option unset.

Default: false

permanent_routes = list

Set this to the filename (or a semicolon-separated list of filenames) of the route
configuration for always available connections. Main purpose is to define a mail
server with mail_host in your local network, or if masqmail should send mail
directly to the target host. If you have only a single host, you can leave it
unset.

A setting `local_nets = "*home.net"' in versions <= 0.3.3 is in newer versions
configured as: `permanent_routes = "/etc/masqmail/homenet.route"' and the route
file `homenet.route' containing:
allowed_recipients = "*@*home.net"
connect_error_fail = true
resolve_list = byname
This is just as it had been with local_net_route, with the exception that the filtering for
appropriate addresses is only in the route file and not with local_nets.

query_routes.name = list

Replace name with a name to identify the connection. Set this to a filename (or a
semicolon-separated list of filenames) for the route configuration for that
connection.

Routes of this kind cannot be expected to be online always. Masqmail will query
which of the routes are online.

You can use the name to call masqmail with the -qo option every time a connection
to your ISP is set up, in order to send queued mail through this route.

Example: Your ISP has the name FastNet. Then you write the following line in the
main configuration:

query_routes.FastNet = "/etc/masqmail/fastnet.route"

/etc/masqmail/fastnet.route is the route configuration file, see masqmail.route(5).
As soon as a link to FastNet has been set up, you call `masqmail -qo FastNet'.
Masqmail will then read the specified file and send the mails.

See online_query.

alias_file = file

Set this to the location of your alias file. If not set, no aliasing will be done.

Default: <not set> (i.e. no aliasing is done)

caseless_matching = boolean

If this is set, aliasing and the matching for local_addresses and
not_local_addresses will be done caseless.

Note: Be sure to change this option only if the queue is empty as correct
processing of queued messages is not guaranteed otherwise.

Default: false

pipe_fromline = boolean

If this is set, a from line will be prepended to the output stream whenever a pipe
command is called after an alias expansion. Default is false.

pipe_fromhack = boolean

If this is set, each line beginning with `From ' is replaced with `>From ' whenever
a pipe command is called after an alias expansion. You probably want this if you
have set pipe_fromline above. Default is false.

mbox_default = string

The default local delivery method. Can be mbox or mda. You can override this for
each user by using the mbox_users or mda_users (see below).

Default: mbox.

mbox_users = list

A list of users which wish delivery to an mbox style mail folder.

mda_users = list

A list of users which wish local delivery to an mda. You have to set mda (see
below) as well.

mda = expand string

If you want local delivery to be transferred to an mda (Mail Delivery Agent), set
this to a command. The argument will be expanded on delivery time, you can use
variables beginning with a dolloar sign `$', optionally enclosed in curly braces.
Variables you can use are:

uid - the unique message id. This is not necessarily identical with the Message ID
as given in the Message ID: header.

received_host - the host the mail was received from

ident - the user id of the sender if the message was received locally.

return_path_local - the local part of the return path (sender).

return_path_domain - the domain part of the return path (sender).

return_path - the complete return path (sender).

rcpt_local - the local part of the recipient.

rcpt_domain - the domain part of the recipient.

rcpt - the complete recipient address.

Example:

mda="/usr/bin/procmail -Y -d ${rcpt_local}"

For the mda, as for pipe commands, a few environment variables will be set as well.
See masqmail(8). To use environment variables for the mda, the dollar sign `$' has
to be escaped with a backslash, otherwise they will be tried to be expanded with
the internal variables.

mda_fromline = boolean

If this is set, a from line will be prepended to the output stream whenever a
message is delivered to an mda. Default is false.

mda_fromhack = boolean

If this is set, each line beginning with `From ' is replaced with `>From ' whenever
a message is delivered to an mda. You probably want this if you have set
mda_fromline above. Default is false.

online_query = command line

Defines the method masqmail uses to detect whether there exists an online
connection currently.

Masqmail executes the command given and reads from its standard output. The
command should just print a route name, as defined with query_routes.name, to
standard output and return a zero status code. Masqmail assumes it is offline if
the script returns with a non-zero status. Leading and trailing whitespace is
removed from the output.

Simple example:

#!/bin/sh
test -e /var/run/masqmail/masqmail-route || exit 1
cat /var/run/masqmail/masqmail-route
exit 0

No matter how masqmail detects the online status, only messages that are accepted
at online time will be delivered using the connection. The mail spool still needs
to be emptied manually (-qoconnection).

command line must start with an absolute path to an executable program. It can
contain optional arguments.

To simulate the old online_method=file, use: /bin/cat /path/to/file

To be always online with connection `foo', use: /bin/echo foo

To query a masqdialer server (i.e. asking it whether a connection exists and what
its name is) use: /usr/bin/mservdetect localhost 224

errmsg_file = file

Set this to a template which will be used to generate delivery failure reports.
Variable parts within the template begin with a dollar sign and are identical to
those which can be used as arguments for the mda command, see mda above.
Additional information can be included with @failed_rcpts, @msg_headers and
@msg_body, these must be at the beginning of a line and will be replaced with the
list of the failed recipients, the message headers and the message body of the
failed message.

Default is /usr/share/masqmail/tpl/failmsg.tpl.

warnmsg_file = file

Set this to a template which will be used to generate delivery warning reports. It
uses the same mechanisms for variables as errmsg_file, see above.

Default is /usr/share/masqmail/tpl/warnmsg.tpl.

warn_intervals = list

Set this to a list of time intervals, at which delivery warnings (starting with the
receiving time of the message) shall be generated.

A warning will only be generated just after an attempt to deliver the mail and if
that attempt failed temporarily. So a warning may be generated after a longer
time, if there was no attempt before.

Default is "1h;4h;8h;1d;2d;3d"

max_defer_time = time

This is the maximum time, in which a temporarily failed mail will be kept in the
spool. When this time is exceeded, it will be handled as a delivery failure, and
the message will be bounced.

The excedence of this time will only be noticed if the message was actually tried
to be delivered. If, for example, the message can only be delivered when online,
but you have not been online for that time, no bounce will be generated.

Default is 4d (4 days)

log_user = name

Replace name with a valid local or remote mail address.

If this option is set, then a copy of every mail, that passes through the masqmail
system will also be sent to the given mail address.

For example you can feed your mails into a program like hypermail for archiving
purpose by placing an appropriate pipe command in masqmail.alias

max_msg_size = bytes

This option sets the maximum size in bytes masqmail will accept for delivery. This
value is advertised to the SMTP client by the `SIZE' message during SMTP session
setup. Clients pretending to send, or actually send, more than bytes will get a
552 error message.

`0' means no fixed maximum size limit is in force.

Default is 0 (= unlimited).

defer_all = boolean

If set to true, masqmail replies with ``421 service temporarily unavailable'' to
any SMTP request and shuts the connection down. Note: This option is for debugging
purposes only.

Default: false

AUTHOR

       Masqmail  was  written  by  Oliver  Kurth.   It  is  now  maintained  by  Markus  Schnalke
       <meillo@marmaro.de>.

       You will find the newest version of masqmail at  http://marmaro.de/prog/masqmail/.   There
       is also a mailing list, you will find information about it at masqmail's main site.

BUGS

       Please report bugs to the mailing list.

NAME

DESCRIPTION

OPTIONS

AUTHOR

BUGS

SEE ALSO