KOLAB_SMTPDPOLICY(1) User Contributed Perl Documentation KOLAB_SMTPDPOLICY(1)NAMEkolab_smtpdpolicy - Kolab SMTP policy
SYNOPSISkolab_smtpdpolicy [-v]
DESCRIPTION
kolabdelegated Postfix SMTPD policy server for Kolab. This server
implements various policies for Kolab:
1) Only authenticated users can use sender <username>@$domain
2) Some distribution lists are only available to authenticated users
Logging is sent to syslogd.
How it works: each time a Postfix SMTP server process is started it
connects to the policy service socket, and Postfix runs one instance of
this PERL script. By default, a Postfix SMTP server process terminates
after 100 seconds of idle time, or after serving 100 clients. Thus, the
cost of starting this PERL script is smoothed out over time.
To run this from /etc/postfix/master.cf:
policy unix - n n - - spawn
user=kolab-n argv=/usr/bin/perl /usr/libexec/postfix/kolab_smtpdpolicy
To use this from Postfix SMTPD, use in /etc/postfix/main.cf:
smtpd_recipient_restrictions =
...
reject_unauth_destination
check_policy_service unix:private/policy
...
smtpd_sender_restrictions =
...
check_policy_service unix:private/policy
...
NOTE: specify check_policy_service AFTER reject_unauth_destination or
else your system can become an open relay.
To test this script by hand, execute kolab_smtpdpolicy, optionally with
the option -v to print debugging output. Example for OpenPKG based
installations:
# su - kolab
$ /kolab/etc/kolab/kolab_smtpdpolicy -v
Each query is a bunch of attributes. Order does not matter, and the
demo script uses only a few of all the attributes shown below:
request=smtpd_access_policy
protocol_state=RCPT
protocol_name=SMTP
helo_name=some.domain.tld
queue_id=8045F2AB23
sender=foo@bar.tld
recipient=bar@foo.tld
client_address=1.2.3.4
client_name=another.domain.tld
instance=123.456.7
sasl_method=plain
sasl_username=you
sasl_sender=
size=12345
[empty line]
The policy server script will answer in the same style, with an
attribute list followed by a empty line:
action=DUNNO
[empty line]
OPTIONS AND ARGUMENTS-v
COPYRIGHT AND AUTHORS
See AUTHORS file
LICENSE
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You can view the GNU General Public License, online, at the GNU
Project's homepage; see <http://www.gnu.org/licenses/gpl.html>.
perl v5.10.1 2010-04-11 KOLAB_SMTPDPOLICY(1)
