Hi Chris,
To run maidag as a LMTP daemon you will need to put the following in its
configuration file:
# Run in daemon mode.
mode daemon;
# Force LMTP
delivery-mode lmtp;
# Listen on 127.0.0.1 port 2525. Of course you can select any other
# IP/port here.
server localhost:2525 {
# Some settings here. See maidag --config-help for details.
# Currently at least one keyword must be present.
transcript no;
# When listening on an IP other than loopback, the "acl" section will
# be useful, e.g.:
# acl {
# allow from X.X.X.X/Y;
# deny from any;
# }
}
Basically, that's all. To listen on a UNIX socket instead of the
network interface, use:
server socket:///path/to/socket {...
If Mailutils was configured with support for TCP wrappers, you might
also need to configure the tcp-wrappers section. By default maidag
will consider "maidag" entries in /etc/hosts.allow, /etc/hosts.deny.
Normally you would put
maidag: 127.0.0.1
in your /etc/hosts.allow. The tcp-wrappers section offers a
fine-grained control over this. For example, to use another daemon
name:
tcp-wrappers {
daemon "lmtp";
}
(then the entries in /etc/hosts.* would look like:
lmtp: X.X.X.X ...
)
To disable tcp wrappers:
tcp-wrappers {
enable no;
}
There are still more settings in this section. As usual, "maidag
--config-help" is your friend:)
A number of settings is provided that control the daemon behavior:
1. Normally maidag changes to group "mail" after startup. To change this
use the group statement, e.g.:
group (mail,lmtp);
2. To control the maximum number of subprocesses (i.e. the number of
simultaneous LMTP connections):
max-children N;
where N is a decimal number.
3. To set idle timeout for a session:
timeout SECONDS;
4. To store PID of the master process in a file:
pidfile "/path/to/file";
If you prefer to run maidag from inetd, instead of running it as a
daemon, then use this:
mode inetd;
delivery-mode lmtp;
However, daemon mode is much more flexible, so I'd suggest using it.
You can also configure a "forward-file" functionality, similar to that
of Sendmail or Exim, e.g.:
forward-file ".forward";
Before reading that file, maidag applies a number of safety checks to it
and refuses to rely on it if it does not pass them. These checks are
described in detail here:
http://mailutils.org/wiki/File_Safety_Checks#The_Forward_File
Regards,
Sergey
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